21011030

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:472

約数の個数: 32

約数和(自身を含む): 38864448

約数和(自身を除く): 17853418

約数列:

[1, 2, 5, 10, 71, 101, 142, 202, 293, 355, 505, 586, 710, 1010, 1465, 2930, 7171, 14342, 20803, 29593, 35855, 41606, 59186, 71710, 104015, 147965, 208030, 295930, 2101103, 4202206, 10505515, 21011030]

約数ペア:

[(1, 21011030), (2, 10505515), (5, 4202206), (10, 2101103), (71, 295930), (101, 208030), (142, 147965), (202, 104015), (293, 71710), (355, 59186), (505, 41606), (586, 35855), (710, 29593), (1010, 20803), (1465, 14342), (2930, 7171)]