19916676

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{42557}}^1$

素因数の和:42580

約数の個数: 36

約数和(自身を含む): 54218892

約数和(自身を除く): 34302216

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 42557, 85114, 127671, 170228, 255342, 383013, 510684, 553241, 766026, 1106482, 1532052, 1659723, 2212964, 3319446, 4979169, 6638892, 9958338, 19916676]

約数ペア:

[(1, 19916676), (2, 9958338), (3, 6638892), (4, 4979169), (6, 3319446), (9, 2212964), (12, 1659723), (13, 1532052), (18, 1106482), (26, 766026), (36, 553241), (39, 510684), (52, 383013), (78, 255342), (117, 170228), (156, 127671), (234, 85114), (468, 42557)]