21682629

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 35568000

約数和(自身を除く): 13885371

約数列:

[1, 3, 9, 19, 23, 37, 57, 69, 111, 149, 171, 207, 333, 437, 447, 703, 851, 1311, 1341, 2109, 2553, 2831, 3427, 3933, 5513, 6327, 7659, 8493, 10281, 16169, 16539, 25479, 30843, 48507, 49617, 65113, 104747, 126799, 145521, 195339, 314241, 380397, 586017, 942723, 1141191, 2409181, 7227543, 21682629]

約数ペア:

[(1, 21682629), (3, 7227543), (9, 2409181), (19, 1141191), (23, 942723), (37, 586017), (57, 380397), (69, 314241), (111, 195339), (149, 145521), (171, 126799), (207, 104747), (333, 65113), (437, 49617), (447, 48507), (703, 30843), (851, 25479), (1311, 16539), (1341, 16169), (2109, 10281), (2553, 8493), (2831, 7659), (3427, 6327), (3933, 5513)]