21440796

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{823}}^1$

素因数の和:1010

約数の個数: 48

約数和(自身を含む): 54265344

約数和(自身を除く): 32824548

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 167, 334, 501, 668, 823, 1002, 1646, 2004, 2171, 2469, 3292, 4342, 4938, 6513, 8684, 9876, 10699, 13026, 21398, 26052, 32097, 42796, 64194, 128388, 137441, 274882, 412323, 549764, 824646, 1649292, 1786733, 3573466, 5360199, 7146932, 10720398, 21440796]

約数ペア:

[(1, 21440796), (2, 10720398), (3, 7146932), (4, 5360199), (6, 3573466), (12, 1786733), (13, 1649292), (26, 824646), (39, 549764), (52, 412323), (78, 274882), (156, 137441), (167, 128388), (334, 64194), (501, 42796), (668, 32097), (823, 26052), (1002, 21398), (1646, 13026), (2004, 10699), (2171, 9876), (2469, 8684), (3292, 6513), (4342, 4938)]