211253315

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{3389}}^1$

素因数の和:3551

約数の個数: 32

約数和(自身を含む): 314375040

約数和(自身を除く): 103121725

約数列:

[1, 5, 7, 13, 35, 65, 91, 137, 455, 685, 959, 1781, 3389, 4795, 8905, 12467, 16945, 23723, 44057, 62335, 118615, 220285, 308399, 464293, 1541995, 2321465, 3250051, 6035809, 16250255, 30179045, 42250663, 211253315]

約数ペア:

[(1, 211253315), (5, 42250663), (7, 30179045), (13, 16250255), (35, 6035809), (65, 3250051), (91, 2321465), (137, 1541995), (455, 464293), (685, 308399), (959, 220285), (1781, 118615), (3389, 62335), (4795, 44057), (8905, 23723), (12467, 16945)]