21782470

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{563}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 40567392

約数和(自身を除く): 18784922

約数列:

[1, 2, 5, 10, 53, 73, 106, 146, 265, 365, 530, 563, 730, 1126, 2815, 3869, 5630, 7738, 19345, 29839, 38690, 41099, 59678, 82198, 149195, 205495, 298390, 410990, 2178247, 4356494, 10891235, 21782470]

約数ペア:

[(1, 21782470), (2, 10891235), (5, 4356494), (10, 2178247), (53, 410990), (73, 298390), (106, 205495), (146, 149195), (265, 82198), (365, 59678), (530, 41099), (563, 38690), (730, 29839), (1126, 19345), (2815, 7738), (3869, 5630)]