20489612

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{317}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 42632352

約数和(自身を除く): 22142740

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 113, 143, 226, 286, 317, 452, 572, 634, 1243, 1268, 1469, 2486, 2938, 3487, 4121, 4972, 5876, 6974, 8242, 13948, 16159, 16484, 32318, 35821, 45331, 64636, 71642, 90662, 143284, 181324, 394031, 465673, 788062, 931346, 1576124, 1862692, 5122403, 10244806, 20489612]

約数ペア:

[(1, 20489612), (2, 10244806), (4, 5122403), (11, 1862692), (13, 1576124), (22, 931346), (26, 788062), (44, 465673), (52, 394031), (113, 181324), (143, 143284), (226, 90662), (286, 71642), (317, 64636), (452, 45331), (572, 35821), (634, 32318), (1243, 16484), (1268, 16159), (1469, 13948), (2486, 8242), (2938, 6974), (3487, 5876), (4121, 4972)]