31291845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6977}}^1$

素因数の和:7021

約数の個数: 32

約数和(自身を含む): 56270592

約数和(自身を除く): 24978747

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 6977, 20931, 34885, 90701, 104655, 160471, 272103, 453505, 481413, 802355, 1360515, 2086123, 2407065, 6258369, 10430615, 31291845]

約数ペア:

[(1, 31291845), (3, 10430615), (5, 6258369), (13, 2407065), (15, 2086123), (23, 1360515), (39, 802355), (65, 481413), (69, 453505), (115, 272103), (195, 160471), (299, 104655), (345, 90701), (897, 34885), (1495, 20931), (4485, 6977)]