21067310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{757}}^1$

素因数の和:809

約数の個数: 48

約数和(自身を含む): 43551648

約数和(自身を除く): 22484338

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 121, 230, 242, 253, 506, 605, 757, 1210, 1265, 1514, 2530, 2783, 3785, 5566, 7570, 8327, 13915, 16654, 17411, 27830, 34822, 41635, 83270, 87055, 91597, 174110, 183194, 191521, 383042, 457985, 915970, 957605, 1915210, 2106731, 4213462, 10533655, 21067310]

約数ペア:

[(1, 21067310), (2, 10533655), (5, 4213462), (10, 2106731), (11, 1915210), (22, 957605), (23, 915970), (46, 457985), (55, 383042), (110, 191521), (115, 183194), (121, 174110), (230, 91597), (242, 87055), (253, 83270), (506, 41635), (605, 34822), (757, 27830), (1210, 17411), (1265, 16654), (1514, 13915), (2530, 8327), (2783, 7570), (3785, 5566)]