21684630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2857}}^1$

素因数の和:2901

約数の個数: 64

約数和(自身を含む): 59263488

約数和(自身を除く): 37578858

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2530, 2857, 3795, 5714, 7590, 8571, 14285, 17142, 28570, 31427, 42855, 62854, 65711, 85710, 94281, 131422, 157135, 188562, 197133, 314270, 328555, 394266, 471405, 657110, 722821, 942810, 985665, 1445642, 1971330, 2168463, 3614105, 4336926, 7228210, 10842315, 21684630]

約数ペア:

[(1, 21684630), (2, 10842315), (3, 7228210), (5, 4336926), (6, 3614105), (10, 2168463), (11, 1971330), (15, 1445642), (22, 985665), (23, 942810), (30, 722821), (33, 657110), (46, 471405), (55, 394266), (66, 328555), (69, 314270), (110, 197133), (115, 188562), (138, 157135), (165, 131422), (230, 94281), (253, 85710), (330, 65711), (345, 62854), (506, 42855), (690, 31427), (759, 28570), (1265, 17142), (1518, 14285), (2530, 8571), (2857, 7590), (3795, 5714)]