21217960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23063}}^1$

素因数の和:23097

約数の個数: 32

約数和(自身を含む): 49818240

約数和(自身を除く): 28600280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23063, 46126, 92252, 115315, 184504, 230630, 461260, 530449, 922520, 1060898, 2121796, 2652245, 4243592, 5304490, 10608980, 21217960]

約数ペア:

[(1, 21217960), (2, 10608980), (4, 5304490), (5, 4243592), (8, 2652245), (10, 2121796), (20, 1060898), (23, 922520), (40, 530449), (46, 461260), (92, 230630), (115, 184504), (184, 115315), (230, 92252), (460, 46126), (920, 23063)]