221666985

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{3511}}^1$

素因数の和:3606

約数の個数: 48

約数和(自身を含む): 407616768

約数和(自身を除く): 185949783

約数列:

[1, 3, 5, 9, 15, 23, 45, 61, 69, 115, 183, 207, 305, 345, 549, 915, 1035, 1403, 2745, 3511, 4209, 7015, 10533, 12627, 17555, 21045, 31599, 52665, 63135, 80753, 157995, 214171, 242259, 403765, 642513, 726777, 1070855, 1211295, 1927539, 3212565, 3633885, 4925933, 9637695, 14777799, 24629665, 44333397, 73888995, 221666985]

約数ペア:

[(1, 221666985), (3, 73888995), (5, 44333397), (9, 24629665), (15, 14777799), (23, 9637695), (45, 4925933), (61, 3633885), (69, 3212565), (115, 1927539), (183, 1211295), (207, 1070855), (305, 726777), (345, 642513), (549, 403765), (915, 242259), (1035, 214171), (1403, 157995), (2745, 80753), (3511, 63135), (4209, 52665), (7015, 31599), (10533, 21045), (12627, 17555)]