21806967

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 37657088

約数和(自身を除く): 15850121

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 151, 161, 273, 299, 453, 483, 529, 897, 1057, 1587, 1963, 2093, 3171, 3473, 3703, 5889, 6279, 6877, 10419, 11109, 13741, 20631, 24311, 41223, 45149, 48139, 72933, 79879, 135447, 144417, 239637, 316043, 559153, 948129, 1038427, 1677459, 3115281, 7268989, 21806967]

約数ペア:

[(1, 21806967), (3, 7268989), (7, 3115281), (13, 1677459), (21, 1038427), (23, 948129), (39, 559153), (69, 316043), (91, 239637), (151, 144417), (161, 135447), (273, 79879), (299, 72933), (453, 48139), (483, 45149), (529, 41223), (897, 24311), (1057, 20631), (1587, 13741), (1963, 11109), (2093, 10419), (3171, 6877), (3473, 6279), (3703, 5889)]