21531104

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5059}}^1$

素因数の和:5095

約数の個数: 48

約数和(自身を含む): 51004800

約数和(自身を除く): 29473696

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 5059, 10118, 20236, 35413, 40472, 70826, 80944, 96121, 141652, 161888, 192242, 283304, 384484, 566608, 672847, 768968, 1133216, 1345694, 1537936, 2691388, 3075872, 5382776, 10765552, 21531104]

約数ペア:

[(1, 21531104), (2, 10765552), (4, 5382776), (7, 3075872), (8, 2691388), (14, 1537936), (16, 1345694), (19, 1133216), (28, 768968), (32, 672847), (38, 566608), (56, 384484), (76, 283304), (112, 192242), (133, 161888), (152, 141652), (224, 96121), (266, 80944), (304, 70826), (532, 40472), (608, 35413), (1064, 20236), (2128, 10118), (4256, 5059)]