21867524

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 25629436

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 59, 61, 62, 98, 118, 122, 124, 196, 217, 236, 244, 413, 427, 434, 826, 854, 868, 1519, 1652, 1708, 1829, 1891, 2891, 2989, 3038, 3599, 3658, 3782, 5782, 5978, 6076, 7198, 7316, 7564, 11564, 11956, 12803, 13237, 14396, 25193, 25606, 26474, 50386, 51212, 52948, 89621, 92659, 100772, 111569, 176351, 179242, 185318, 223138, 352702, 358484, 370636, 446276, 705404, 780983, 1561966, 3123932, 5466881, 10933762, 21867524]

約数ペア:

[(1, 21867524), (2, 10933762), (4, 5466881), (7, 3123932), (14, 1561966), (28, 780983), (31, 705404), (49, 446276), (59, 370636), (61, 358484), (62, 352702), (98, 223138), (118, 185318), (122, 179242), (124, 176351), (196, 111569), (217, 100772), (236, 92659), (244, 89621), (413, 52948), (427, 51212), (434, 50386), (826, 26474), (854, 25606), (868, 25193), (1519, 14396), (1652, 13237), (1708, 12803), (1829, 11956), (1891, 11564), (2891, 7564), (2989, 7316), (3038, 7198), (3599, 6076), (3658, 5978), (3782, 5782)]