19981392

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:596

約数の個数: 80

約数和(自身を含む): 55924992

約数和(自身を除く): 35943600

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 47, 48, 51, 68, 94, 102, 136, 141, 188, 204, 272, 282, 376, 408, 521, 564, 752, 799, 816, 1042, 1128, 1563, 1598, 2084, 2256, 2397, 3126, 3196, 4168, 4794, 6252, 6392, 8336, 8857, 9588, 12504, 12784, 17714, 19176, 24487, 25008, 26571, 35428, 38352, 48974, 53142, 70856, 73461, 97948, 106284, 141712, 146922, 195896, 212568, 293844, 391792, 416279, 425136, 587688, 832558, 1175376, 1248837, 1665116, 2497674, 3330232, 4995348, 6660464, 9990696, 19981392]

約数ペア:

[(1, 19981392), (2, 9990696), (3, 6660464), (4, 4995348), (6, 3330232), (8, 2497674), (12, 1665116), (16, 1248837), (17, 1175376), (24, 832558), (34, 587688), (47, 425136), (48, 416279), (51, 391792), (68, 293844), (94, 212568), (102, 195896), (136, 146922), (141, 141712), (188, 106284), (204, 97948), (272, 73461), (282, 70856), (376, 53142), (408, 48974), (521, 38352), (564, 35428), (752, 26571), (799, 25008), (816, 24487), (1042, 19176), (1128, 17714), (1563, 12784), (1598, 12504), (2084, 9588), (2256, 8857), (2397, 8336), (3126, 6392), (3196, 6252), (4168, 4794)]