21410170

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:430

約数の個数: 32

約数和(自身を含む): 39533760

約数和(自身を除く): 18123590

約数列:

[1, 2, 5, 10, 73, 139, 146, 211, 278, 365, 422, 695, 730, 1055, 1390, 2110, 10147, 15403, 20294, 29329, 30806, 50735, 58658, 77015, 101470, 146645, 154030, 293290, 2141017, 4282034, 10705085, 21410170]

約数ペア:

[(1, 21410170), (2, 10705085), (5, 4282034), (10, 2141017), (73, 293290), (139, 154030), (146, 146645), (211, 101470), (278, 77015), (365, 58658), (422, 50735), (695, 30806), (730, 29329), (1055, 20294), (1390, 15403), (2110, 10147)]