21149595

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15161}}^1$

素因数の和:15203

約数の個数: 24

約数和(自身を含む): 37844352

約数和(自身を除く): 16694757

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15161, 45483, 75805, 136449, 227415, 469991, 682245, 1409973, 2349955, 4229919, 7049865, 21149595]

約数ペア:

[(1, 21149595), (3, 7049865), (5, 4229919), (9, 2349955), (15, 1409973), (31, 682245), (45, 469991), (93, 227415), (155, 136449), (279, 75805), (465, 45483), (1395, 15161)]