21989097

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:175

約数の個数: 48

約数和(自身を含む): 36307200

約数和(自身を除く): 14318103

約数列:

[1, 3, 9, 13, 27, 39, 61, 79, 117, 169, 183, 237, 351, 507, 549, 711, 793, 1027, 1521, 1647, 2133, 2379, 3081, 4563, 4819, 7137, 9243, 10309, 13351, 14457, 21411, 27729, 30927, 40053, 43371, 62647, 92781, 120159, 130113, 187941, 278343, 360477, 563823, 814411, 1691469, 2443233, 7329699, 21989097]

約数ペア:

[(1, 21989097), (3, 7329699), (9, 2443233), (13, 1691469), (27, 814411), (39, 563823), (61, 360477), (79, 278343), (117, 187941), (169, 130113), (183, 120159), (237, 92781), (351, 62647), (507, 43371), (549, 40053), (711, 30927), (793, 27729), (1027, 21411), (1521, 14457), (1647, 13351), (2133, 10309), (2379, 9243), (3081, 7137), (4563, 4819)]