161427981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{659}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 253693440

約数和(自身を除く): 92265459

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 571, 659, 1713, 1977, 6281, 7249, 7423, 8567, 18843, 21747, 22269, 25701, 81653, 94237, 244959, 282711, 376289, 1128867, 4139179, 4891757, 12417537, 14675271, 53809327, 161427981]

約数ペア:

[(1, 161427981), (3, 53809327), (11, 14675271), (13, 12417537), (33, 4891757), (39, 4139179), (143, 1128867), (429, 376289), (571, 282711), (659, 244959), (1713, 94237), (1977, 81653), (6281, 25701), (7249, 22269), (7423, 21747), (8567, 18843)]