20213138878

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{641}}^1\times {\mathrm{2221}}^1$

素因数の和:3124

約数の個数: 32

約数和(自身を含む): 31497649920

約数和(自身を除く): 11284511042

約数列:

[1, 2, 31, 62, 229, 458, 641, 1282, 2221, 4442, 7099, 14198, 19871, 39742, 68851, 137702, 146789, 293578, 508609, 1017218, 1423661, 2847322, 4550459, 9100918, 15766879, 31533758, 44133491, 88266982, 326018369, 652036738, 10106569439, 20213138878]

約数ペア:

[(1, 20213138878), (2, 10106569439), (31, 652036738), (62, 326018369), (229, 88266982), (458, 44133491), (641, 31533758), (1282, 15766879), (2221, 9100918), (4442, 4550459), (7099, 2847322), (14198, 1423661), (19871, 1017218), (39742, 508609), (68851, 293578), (137702, 146789)]