20282517

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 30216888

約数和(自身を除く): 9934371

約数列:

[1, 3, 9, 53, 101, 159, 303, 421, 477, 909, 1263, 3789, 5353, 16059, 22313, 42521, 48177, 66939, 127563, 200817, 382689, 2253613, 6760839, 20282517]

約数ペア:

[(1, 20282517), (3, 6760839), (9, 2253613), (53, 382689), (101, 200817), (159, 127563), (303, 66939), (421, 48177), (477, 42521), (909, 22313), (1263, 16059), (3789, 5353)]