991033274

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{577}}^1\times {\mathrm{587}}^1$

素因数の和:1203

約数の個数: 64

約数和(自身を含む): 1957616640

約数和(自身を除く): 966583366

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 577, 587, 1154, 1174, 1463, 2926, 4039, 4109, 6347, 6457, 8078, 8218, 10963, 11153, 12694, 12914, 21926, 22306, 44429, 45199, 76741, 78071, 88858, 90398, 120593, 122683, 153482, 156142, 241186, 245366, 338699, 677398, 844151, 858781, 1688302, 1717562, 2370893, 3725689, 4741786, 6435281, 7451378, 12870562, 26079823, 45046967, 52159646, 70788091, 90093934, 141576182, 495516637, 991033274]

約数ペア:

[(1, 991033274), (2, 495516637), (7, 141576182), (11, 90093934), (14, 70788091), (19, 52159646), (22, 45046967), (38, 26079823), (77, 12870562), (133, 7451378), (154, 6435281), (209, 4741786), (266, 3725689), (418, 2370893), (577, 1717562), (587, 1688302), (1154, 858781), (1174, 844151), (1463, 677398), (2926, 338699), (4039, 245366), (4109, 241186), (6347, 156142), (6457, 153482), (8078, 122683), (8218, 120593), (10963, 90398), (11153, 88858), (12694, 78071), (12914, 76741), (21926, 45199), (22306, 44429)]