18243715

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 26459136

約数和(自身を除く): 8215421

約数列:

[1, 5, 7, 23, 35, 115, 131, 161, 173, 655, 805, 865, 917, 1211, 3013, 3979, 4585, 6055, 15065, 19895, 21091, 22663, 27853, 105455, 113315, 139265, 158641, 521249, 793205, 2606245, 3648743, 18243715]

約数ペア:

[(1, 18243715), (5, 3648743), (7, 2606245), (23, 793205), (35, 521249), (115, 158641), (131, 139265), (161, 113315), (173, 105455), (655, 27853), (805, 22663), (865, 21091), (917, 19895), (1211, 15065), (3013, 6055), (3979, 4585)]