87311511

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 149160960

約数和(自身を除く): 61849449

約数列:

[1, 3, 7, 9, 21, 53, 63, 79, 159, 237, 331, 371, 477, 553, 711, 993, 1113, 1659, 2317, 2979, 3339, 4187, 4977, 6951, 12561, 17543, 20853, 26149, 29309, 37683, 52629, 78447, 87927, 122801, 157887, 183043, 235341, 263781, 368403, 549129, 1105209, 1385897, 1647387, 4157691, 9701279, 12473073, 29103837, 87311511]

約数ペア:

[(1, 87311511), (3, 29103837), (7, 12473073), (9, 9701279), (21, 4157691), (53, 1647387), (63, 1385897), (79, 1105209), (159, 549129), (237, 368403), (331, 263781), (371, 235341), (477, 183043), (553, 157887), (711, 122801), (993, 87927), (1113, 78447), (1659, 52629), (2317, 37683), (2979, 29309), (3339, 26149), (4187, 20853), (4977, 17543), (6951, 12561)]