13211990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 26717040

約数和(自身を除く): 13505050

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 121, 122, 179, 242, 305, 358, 605, 610, 671, 895, 1210, 1342, 1790, 1969, 3355, 3938, 6710, 7381, 9845, 10919, 14762, 19690, 21659, 21838, 36905, 43318, 54595, 73810, 108295, 109190, 120109, 216590, 240218, 600545, 1201090, 1321199, 2642398, 6605995, 13211990]

約数ペア:

[(1, 13211990), (2, 6605995), (5, 2642398), (10, 1321199), (11, 1201090), (22, 600545), (55, 240218), (61, 216590), (110, 120109), (121, 109190), (122, 108295), (179, 73810), (242, 54595), (305, 43318), (358, 36905), (605, 21838), (610, 21659), (671, 19690), (895, 14762), (1210, 10919), (1342, 9845), (1790, 7381), (1969, 6710), (3355, 3938)]