216980715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{8233}}^1$

素因数の和:8499

約数の個数: 32

約数和(自身を含む): 398393856

約数和(自身を除く): 181413141

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 251, 753, 1255, 1757, 3765, 5271, 8233, 8785, 24699, 26355, 41165, 57631, 123495, 172893, 288155, 864465, 2066483, 6199449, 10332415, 14465381, 30997245, 43396143, 72326905, 216980715]

約数ペア:

[(1, 216980715), (3, 72326905), (5, 43396143), (7, 30997245), (15, 14465381), (21, 10332415), (35, 6199449), (105, 2066483), (251, 864465), (753, 288155), (1255, 172893), (1757, 123495), (3765, 57631), (5271, 41165), (8233, 26355), (8785, 24699)]