28967985

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{173}}^1$

素因数の和:306

約数の個数: 36

約数和(自身を含む): 51342876

約数和(自身を除く): 22374891

約数列:

[1, 3, 5, 9, 15, 45, 61, 173, 183, 305, 519, 549, 865, 915, 1557, 2595, 2745, 3721, 7785, 10553, 11163, 18605, 31659, 33489, 52765, 55815, 94977, 158295, 167445, 474885, 643733, 1931199, 3218665, 5793597, 9655995, 28967985]

約数ペア:

[(1, 28967985), (3, 9655995), (5, 5793597), (9, 3218665), (15, 1931199), (45, 643733), (61, 474885), (173, 167445), (183, 158295), (305, 94977), (519, 55815), (549, 52765), (865, 33489), (915, 31659), (1557, 18605), (2595, 11163), (2745, 10553), (3721, 7785)]