21842080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10501}}^1$

素因数の和:10529

約数の個数: 48

約数和(自身を含む): 55576584

約数和(自身を除く): 33734504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 10501, 21002, 42004, 52505, 84008, 105010, 136513, 168016, 210020, 273026, 336032, 420040, 546052, 682565, 840080, 1092104, 1365130, 1680160, 2184208, 2730260, 4368416, 5460520, 10921040, 21842080]

約数ペア:

[(1, 21842080), (2, 10921040), (4, 5460520), (5, 4368416), (8, 2730260), (10, 2184208), (13, 1680160), (16, 1365130), (20, 1092104), (26, 840080), (32, 682565), (40, 546052), (52, 420040), (65, 336032), (80, 273026), (104, 210020), (130, 168016), (160, 136513), (208, 105010), (260, 84008), (416, 52505), (520, 42004), (1040, 21002), (2080, 10501)]