20909196

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:444

約数の個数: 144

約数和(自身を含む): 69538560

約数和(自身を除く): 48629364

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 19, 21, 22, 28, 33, 36, 38, 42, 44, 57, 63, 66, 76, 77, 84, 99, 114, 126, 132, 133, 154, 171, 198, 209, 228, 231, 252, 266, 308, 342, 396, 397, 399, 418, 462, 532, 627, 684, 693, 794, 798, 836, 924, 1191, 1197, 1254, 1386, 1463, 1588, 1596, 1881, 2382, 2394, 2508, 2772, 2779, 2926, 3573, 3762, 4367, 4389, 4764, 4788, 5558, 5852, 7146, 7524, 7543, 8337, 8734, 8778, 11116, 13101, 13167, 14292, 15086, 16674, 17468, 17556, 22629, 25011, 26202, 26334, 30172, 30569, 33348, 39303, 45258, 50022, 52404, 52668, 52801, 61138, 67887, 78606, 82973, 90516, 91707, 100044, 105602, 122276, 135774, 157212, 158403, 165946, 183414, 211204, 248919, 271548, 275121, 316806, 331892, 366828, 475209, 497838, 550242, 580811, 633612, 746757, 950418, 995676, 1100484, 1161622, 1493514, 1742433, 1900836, 2323244, 2987028, 3484866, 5227299, 6969732, 10454598, 20909196]

約数ペア:

[(1, 20909196), (2, 10454598), (3, 6969732), (4, 5227299), (6, 3484866), (7, 2987028), (9, 2323244), (11, 1900836), (12, 1742433), (14, 1493514), (18, 1161622), (19, 1100484), (21, 995676), (22, 950418), (28, 746757), (33, 633612), (36, 580811), (38, 550242), (42, 497838), (44, 475209), (57, 366828), (63, 331892), (66, 316806), (76, 275121), (77, 271548), (84, 248919), (99, 211204), (114, 183414), (126, 165946), (132, 158403), (133, 157212), (154, 135774), (171, 122276), (198, 105602), (209, 100044), (228, 91707), (231, 90516), (252, 82973), (266, 78606), (308, 67887), (342, 61138), (396, 52801), (397, 52668), (399, 52404), (418, 50022), (462, 45258), (532, 39303), (627, 33348), (684, 30569), (693, 30172), (794, 26334), (798, 26202), (836, 25011), (924, 22629), (1191, 17556), (1197, 17468), (1254, 16674), (1386, 15086), (1463, 14292), (1588, 13167), (1596, 13101), (1881, 11116), (2382, 8778), (2394, 8734), (2508, 8337), (2772, 7543), (2779, 7524), (2926, 7146), (3573, 5852), (3762, 5558), (4367, 4788), (4389, 4764)]