21381036376

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1\times {\mathrm{1433}}^1$

素因数の和:1881

約数の個数: 128

約数和(自身を含む): 49696704000

約数和(自身を除く): 28315667624

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 37, 38, 56, 74, 76, 133, 148, 152, 259, 266, 296, 379, 518, 532, 703, 758, 1036, 1064, 1406, 1433, 1516, 2072, 2653, 2812, 2866, 3032, 4921, 5306, 5624, 5732, 7201, 9842, 10031, 10612, 11464, 14023, 14402, 19684, 20062, 21224, 27227, 28046, 28804, 39368, 40124, 50407, 53021, 54454, 56092, 57608, 80248, 98161, 100814, 106042, 108908, 112184, 190589, 196322, 201628, 212084, 217816, 266437, 371147, 381178, 392644, 403256, 424168, 532874, 543107, 742294, 762356, 785288, 1007399, 1065748, 1086214, 1484588, 1524712, 1865059, 2014798, 2131496, 2172428, 2969176, 3730118, 3801749, 4029596, 4344856, 7051793, 7460236, 7603498, 8059192, 10319033, 14103586, 14920472, 15206996, 20094959, 20638066, 28207172, 30413992, 40189918, 41276132, 56414344, 72233231, 80379836, 82552264, 140664713, 144466462, 160759672, 281329426, 288932924, 381804221, 562658852, 577865848, 763608442, 1125317704, 1527216884, 2672629547, 3054433768, 5345259094, 10690518188, 21381036376]

約数ペア:

[(1, 21381036376), (2, 10690518188), (4, 5345259094), (7, 3054433768), (8, 2672629547), (14, 1527216884), (19, 1125317704), (28, 763608442), (37, 577865848), (38, 562658852), (56, 381804221), (74, 288932924), (76, 281329426), (133, 160759672), (148, 144466462), (152, 140664713), (259, 82552264), (266, 80379836), (296, 72233231), (379, 56414344), (518, 41276132), (532, 40189918), (703, 30413992), (758, 28207172), (1036, 20638066), (1064, 20094959), (1406, 15206996), (1433, 14920472), (1516, 14103586), (2072, 10319033), (2653, 8059192), (2812, 7603498), (2866, 7460236), (3032, 7051793), (4921, 4344856), (5306, 4029596), (5624, 3801749), (5732, 3730118), (7201, 2969176), (9842, 2172428), (10031, 2131496), (10612, 2014798), (11464, 1865059), (14023, 1524712), (14402, 1484588), (19684, 1086214), (20062, 1065748), (21224, 1007399), (27227, 785288), (28046, 762356), (28804, 742294), (39368, 543107), (40124, 532874), (50407, 424168), (53021, 403256), (54454, 392644), (56092, 381178), (57608, 371147), (80248, 266437), (98161, 217816), (100814, 212084), (106042, 201628), (108908, 196322), (112184, 190589)]