21235210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5431}}^1$

素因数の和:5478

約数の個数: 32

約数和(自身を含む): 42239232

約数和(自身を除く): 21004022

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 5431, 10862, 27155, 54310, 92327, 124913, 184654, 249826, 461635, 624565, 923270, 1249130, 2123521, 4247042, 10617605, 21235210]

約数ペア:

[(1, 21235210), (2, 10617605), (5, 4247042), (10, 2123521), (17, 1249130), (23, 923270), (34, 624565), (46, 461635), (85, 249826), (115, 184654), (170, 124913), (230, 92327), (391, 54310), (782, 27155), (1955, 10862), (3910, 5431)]