689876481

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1\times {\mathrm{1163}}^1$

素因数の和:1821

約数の個数: 32

約数和(自身を含む): 1076318208

約数和(自身を除く): 386441727

約数列:

[1, 3, 7, 21, 47, 141, 329, 601, 987, 1163, 1803, 3489, 4207, 8141, 12621, 24423, 28247, 54661, 84741, 163983, 197729, 382627, 593187, 698963, 1147881, 2096889, 4892741, 14678223, 32851261, 98553783, 229958827, 689876481]

約数ペア:

[(1, 689876481), (3, 229958827), (7, 98553783), (21, 32851261), (47, 14678223), (141, 4892741), (329, 2096889), (601, 1147881), (987, 698963), (1163, 593187), (1803, 382627), (3489, 197729), (4207, 163983), (8141, 84741), (12621, 54661), (24423, 28247)]