20481942

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 46577664

約数和(自身を除く): 26095722

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 47, 74, 78, 94, 111, 141, 151, 222, 282, 302, 453, 481, 611, 906, 962, 1222, 1443, 1739, 1833, 1963, 2886, 3478, 3666, 3926, 5217, 5587, 5889, 7097, 10434, 11174, 11778, 14194, 16761, 21291, 22607, 33522, 42582, 45214, 67821, 72631, 92261, 135642, 145262, 184522, 217893, 262589, 276783, 435786, 525178, 553566, 787767, 1575534, 3413657, 6827314, 10240971, 20481942]

約数ペア:

[(1, 20481942), (2, 10240971), (3, 6827314), (6, 3413657), (13, 1575534), (26, 787767), (37, 553566), (39, 525178), (47, 435786), (74, 276783), (78, 262589), (94, 217893), (111, 184522), (141, 145262), (151, 135642), (222, 92261), (282, 72631), (302, 67821), (453, 45214), (481, 42582), (611, 33522), (906, 22607), (962, 21291), (1222, 16761), (1443, 14194), (1739, 11778), (1833, 11174), (1963, 10434), (2886, 7097), (3478, 5889), (3666, 5587), (3926, 5217)]