20833329

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11422671

約数列:

[1, 3, 11, 19, 33, 57, 149, 209, 223, 447, 627, 669, 1639, 2453, 2831, 4237, 4917, 7359, 8493, 12711, 31141, 33227, 46607, 93423, 99681, 139821, 365497, 631313, 1096491, 1893939, 6944443, 20833329]

約数ペア:

[(1, 20833329), (3, 6944443), (11, 1893939), (19, 1096491), (33, 631313), (57, 365497), (149, 139821), (209, 99681), (223, 93423), (447, 46607), (627, 33227), (669, 31141), (1639, 12711), (2453, 8493), (2831, 7359), (4237, 4917)]