28918965

素因数分解:

$3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{7681}}^1$

素因数の和:7940

約数の個数: 16

約数和(自身を含む): 46460736

約数和(自身を除く): 17541771

約数列:

[1, 3, 5, 15, 251, 753, 1255, 3765, 7681, 23043, 38405, 115215, 1927931, 5783793, 9639655, 28918965]

約数ペア:

[(1, 28918965), (3, 9639655), (5, 5783793), (15, 1927931), (251, 115215), (753, 38405), (1255, 23043), (3765, 7681)]