21619388

素因数分解:

$2^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1511}}^1$

素因数の和:1602

約数の個数: 36

約数和(自身を含む): 44643312

約数和(自身を除く): 23023924

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 146, 196, 292, 511, 1022, 1511, 2044, 3022, 3577, 6044, 7154, 10577, 14308, 21154, 42308, 74039, 110303, 148078, 220606, 296156, 441212, 772121, 1544242, 3088484, 5404847, 10809694, 21619388]

約数ペア:

[(1, 21619388), (2, 10809694), (4, 5404847), (7, 3088484), (14, 1544242), (28, 772121), (49, 441212), (73, 296156), (98, 220606), (146, 148078), (196, 110303), (292, 74039), (511, 42308), (1022, 21154), (1511, 14308), (2044, 10577), (3022, 7154), (3577, 6044)]