18540645

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:973

約数の個数: 32

約数和(自身を含む): 31497984

約数和(自身を除く): 12957339

約数列:

[1, 3, 5, 15, 23, 61, 69, 115, 183, 305, 345, 881, 915, 1403, 2643, 4209, 4405, 7015, 13215, 20263, 21045, 53741, 60789, 101315, 161223, 268705, 303945, 806115, 1236043, 3708129, 6180215, 18540645]

約数ペア:

[(1, 18540645), (3, 6180215), (5, 3708129), (15, 1236043), (23, 806115), (61, 303945), (69, 268705), (115, 161223), (183, 101315), (305, 60789), (345, 53741), (881, 21045), (915, 20263), (1403, 13215), (2643, 7015), (4209, 4405)]