19520886

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:130

約数の個数: 128

約数和(自身を含む): 53084160

約数和(自身を除く): 33563274

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 29, 31, 33, 42, 47, 58, 62, 66, 77, 87, 93, 94, 141, 154, 174, 186, 203, 217, 231, 282, 319, 329, 341, 406, 434, 462, 517, 609, 638, 651, 658, 682, 899, 957, 987, 1023, 1034, 1218, 1302, 1363, 1457, 1551, 1798, 1914, 1974, 2046, 2233, 2387, 2697, 2726, 2914, 3102, 3619, 4089, 4371, 4466, 4774, 5394, 6293, 6699, 7161, 7238, 8178, 8742, 9541, 9889, 10199, 10857, 12586, 13398, 14322, 14993, 16027, 18879, 19082, 19778, 20398, 21714, 28623, 29667, 29986, 30597, 32054, 37758, 42253, 44979, 48081, 57246, 59334, 61194, 69223, 84506, 89958, 96162, 104951, 112189, 126759, 138446, 207669, 209902, 224378, 253518, 295771, 314853, 336567, 415338, 464783, 591542, 629706, 673134, 887313, 929566, 1394349, 1774626, 2788698, 3253481, 6506962, 9760443, 19520886]

約数ペア:

[(1, 19520886), (2, 9760443), (3, 6506962), (6, 3253481), (7, 2788698), (11, 1774626), (14, 1394349), (21, 929566), (22, 887313), (29, 673134), (31, 629706), (33, 591542), (42, 464783), (47, 415338), (58, 336567), (62, 314853), (66, 295771), (77, 253518), (87, 224378), (93, 209902), (94, 207669), (141, 138446), (154, 126759), (174, 112189), (186, 104951), (203, 96162), (217, 89958), (231, 84506), (282, 69223), (319, 61194), (329, 59334), (341, 57246), (406, 48081), (434, 44979), (462, 42253), (517, 37758), (609, 32054), (638, 30597), (651, 29986), (658, 29667), (682, 28623), (899, 21714), (957, 20398), (987, 19778), (1023, 19082), (1034, 18879), (1218, 16027), (1302, 14993), (1363, 14322), (1457, 13398), (1551, 12586), (1798, 10857), (1914, 10199), (1974, 9889), (2046, 9541), (2233, 8742), (2387, 8178), (2697, 7238), (2726, 7161), (2914, 6699), (3102, 6293), (3619, 5394), (4089, 4774), (4371, 4466)]