21503009948

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1451729}}^1$

素因数の和:1451786

約数の個数: 36

約数和(自身を含む): 44957174640

約数和(自身を除く): 23454164692

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 529, 644, 1058, 2116, 3703, 7406, 14812, 1451729, 2903458, 5806916, 10162103, 20324206, 33389767, 40648412, 66779534, 133559068, 233728369, 467456738, 767964641, 934913476, 1535929282, 3071858564, 5375752487, 10751504974, 21503009948]

約数ペア:

[(1, 21503009948), (2, 10751504974), (4, 5375752487), (7, 3071858564), (14, 1535929282), (23, 934913476), (28, 767964641), (46, 467456738), (92, 233728369), (161, 133559068), (322, 66779534), (529, 40648412), (644, 33389767), (1058, 20324206), (2116, 10162103), (3703, 5806916), (7406, 2903458), (14812, 1451729)]