21202605

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15199}}^1$

素因数の和:15241

約数の個数: 24

約数和(自身を含む): 37939200

約数和(自身を除く): 16736595

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15199, 45597, 75995, 136791, 227985, 471169, 683955, 1413507, 2355845, 4240521, 7067535, 21202605]

約数ペア:

[(1, 21202605), (3, 7067535), (5, 4240521), (9, 2355845), (15, 1413507), (31, 683955), (45, 471169), (93, 227985), (155, 136791), (279, 75995), (465, 45597), (1395, 15199)]