21378270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{30983}}^1$

素因数の和:31016

約数の個数: 32

約数和(自身を含む): 53540352

約数和(自身を除く): 32162082

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 30983, 61966, 92949, 154915, 185898, 309830, 464745, 712609, 929490, 1425218, 2137827, 3563045, 4275654, 7126090, 10689135, 21378270]

約数ペア:

[(1, 21378270), (2, 10689135), (3, 7126090), (5, 4275654), (6, 3563045), (10, 2137827), (15, 1425218), (23, 929490), (30, 712609), (46, 464745), (69, 309830), (115, 185898), (138, 154915), (230, 92949), (345, 61966), (690, 30983)]