19898428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{3301}}^1$

素因数の和:3453

約数の個数: 24

約数和(自身を含む): 38276784

約数和(自身を除く): 18378356

約数列:

[1, 2, 4, 11, 22, 44, 137, 274, 548, 1507, 3014, 3301, 6028, 6602, 13204, 36311, 72622, 145244, 452237, 904474, 1808948, 4974607, 9949214, 19898428]

約数ペア:

[(1, 19898428), (2, 9949214), (4, 4974607), (11, 1808948), (22, 904474), (44, 452237), (137, 145244), (274, 72622), (548, 36311), (1507, 13204), (3014, 6602), (3301, 6028)]