20838136

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 45676800

約数和(自身を除く): 24838664

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 103, 121, 152, 206, 209, 242, 412, 418, 484, 824, 836, 968, 1133, 1331, 1672, 1957, 2266, 2299, 2662, 3914, 4532, 4598, 5324, 7828, 9064, 9196, 10648, 12463, 15656, 18392, 21527, 24926, 25289, 43054, 49852, 50578, 86108, 99704, 101156, 137093, 172216, 202312, 236797, 274186, 473594, 548372, 947188, 1096744, 1894376, 2604767, 5209534, 10419068, 20838136]

約数ペア:

[(1, 20838136), (2, 10419068), (4, 5209534), (8, 2604767), (11, 1894376), (19, 1096744), (22, 947188), (38, 548372), (44, 473594), (76, 274186), (88, 236797), (103, 202312), (121, 172216), (152, 137093), (206, 101156), (209, 99704), (242, 86108), (412, 50578), (418, 49852), (484, 43054), (824, 25289), (836, 24926), (968, 21527), (1133, 18392), (1331, 15656), (1672, 12463), (1957, 10648), (2266, 9196), (2299, 9064), (2662, 7828), (3914, 5324), (4532, 4598)]