21645990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10457}}^1$

素因数の和:10493

約数の個数: 48

約数和(自身を含む): 58732128

約数和(自身を除く): 37086138

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 10457, 20914, 31371, 52285, 62742, 94113, 104570, 156855, 188226, 240511, 313710, 470565, 481022, 721533, 941130, 1202555, 1443066, 2164599, 2405110, 3607665, 4329198, 7215330, 10822995, 21645990]

約数ペア:

[(1, 21645990), (2, 10822995), (3, 7215330), (5, 4329198), (6, 3607665), (9, 2405110), (10, 2164599), (15, 1443066), (18, 1202555), (23, 941130), (30, 721533), (45, 481022), (46, 470565), (69, 313710), (90, 240511), (115, 188226), (138, 156855), (207, 104570), (230, 94113), (345, 62742), (414, 52285), (690, 31371), (1035, 20914), (2070, 10457)]