21530576

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1427}}^1$

素因数の和:1499

約数の個数: 40

約数和(自身を含む): 44622144

約数和(自身を除く): 23091568

約数列:

[1, 2, 4, 8, 16, 23, 41, 46, 82, 92, 164, 184, 328, 368, 656, 943, 1427, 1886, 2854, 3772, 5708, 7544, 11416, 15088, 22832, 32821, 58507, 65642, 117014, 131284, 234028, 262568, 468056, 525136, 936112, 1345661, 2691322, 5382644, 10765288, 21530576]

約数ペア:

[(1, 21530576), (2, 10765288), (4, 5382644), (8, 2691322), (16, 1345661), (23, 936112), (41, 525136), (46, 468056), (82, 262568), (92, 234028), (164, 131284), (184, 117014), (328, 65642), (368, 58507), (656, 32821), (943, 22832), (1427, 15088), (1886, 11416), (2854, 7544), (3772, 5708)]