18782421

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1051}}^1$

素因数の和:1121

約数の個数: 32

約数和(自身を含む): 30701568

約数和(自身を除く): 11919147

約数列:

[1, 3, 7, 21, 23, 37, 69, 111, 161, 259, 483, 777, 851, 1051, 2553, 3153, 5957, 7357, 17871, 22071, 24173, 38887, 72519, 116661, 169211, 272209, 507633, 816627, 894401, 2683203, 6260807, 18782421]

約数ペア:

[(1, 18782421), (3, 6260807), (7, 2683203), (21, 894401), (23, 816627), (37, 507633), (69, 272209), (111, 169211), (161, 116661), (259, 72519), (483, 38887), (777, 24173), (851, 22071), (1051, 17871), (2553, 7357), (3153, 5957)]