20375733

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 32972800

約数和(自身を除く): 12597067

約数列:

[1, 3, 7, 19, 21, 57, 133, 223, 229, 399, 669, 687, 1561, 1603, 4237, 4351, 4683, 4809, 12711, 13053, 29659, 30457, 51067, 88977, 91371, 153201, 357469, 970273, 1072407, 2910819, 6791911, 20375733]

約数ペア:

[(1, 20375733), (3, 6791911), (7, 2910819), (19, 1072407), (21, 970273), (57, 357469), (133, 153201), (223, 91371), (229, 88977), (399, 51067), (669, 30457), (687, 29659), (1561, 13053), (1603, 12711), (4237, 4809), (4351, 4683)]