21903540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4621}}^1$

素因数の和:4712

約数の個数: 48

約数和(自身を含む): 62119680

約数和(自身を除く): 40216140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4621, 4740, 9242, 13863, 18484, 23105, 27726, 46210, 55452, 69315, 92420, 138630, 277260, 365059, 730118, 1095177, 1460236, 1825295, 2190354, 3650590, 4380708, 5475885, 7301180, 10951770, 21903540]

約数ペア:

[(1, 21903540), (2, 10951770), (3, 7301180), (4, 5475885), (5, 4380708), (6, 3650590), (10, 2190354), (12, 1825295), (15, 1460236), (20, 1095177), (30, 730118), (60, 365059), (79, 277260), (158, 138630), (237, 92420), (316, 69315), (395, 55452), (474, 46210), (790, 27726), (948, 23105), (1185, 18484), (1580, 13863), (2370, 9242), (4621, 4740)]