21118932

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 55517280

約数和(自身を除く): 34398348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 61, 118, 122, 163, 177, 183, 236, 244, 326, 354, 366, 489, 531, 549, 652, 708, 732, 978, 1062, 1098, 1467, 1956, 2124, 2196, 2934, 3599, 5868, 7198, 9617, 9943, 10797, 14396, 19234, 19886, 21594, 28851, 29829, 32391, 38468, 39772, 43188, 57702, 59658, 64782, 86553, 89487, 115404, 119316, 129564, 173106, 178974, 346212, 357948, 586637, 1173274, 1759911, 2346548, 3519822, 5279733, 7039644, 10559466, 21118932]

約数ペア:

[(1, 21118932), (2, 10559466), (3, 7039644), (4, 5279733), (6, 3519822), (9, 2346548), (12, 1759911), (18, 1173274), (36, 586637), (59, 357948), (61, 346212), (118, 178974), (122, 173106), (163, 129564), (177, 119316), (183, 115404), (236, 89487), (244, 86553), (326, 64782), (354, 59658), (366, 57702), (489, 43188), (531, 39772), (549, 38468), (652, 32391), (708, 29829), (732, 28851), (978, 21594), (1062, 19886), (1098, 19234), (1467, 14396), (1956, 10797), (2124, 9943), (2196, 9617), (2934, 7198), (3599, 5868)]