21108112

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1399}}^1$

素因数の和:1471

約数の個数: 40

約数和(自身を含む): 43747200

約数和(自身を除く): 22639088

約数列:

[1, 2, 4, 8, 16, 23, 41, 46, 82, 92, 164, 184, 328, 368, 656, 943, 1399, 1886, 2798, 3772, 5596, 7544, 11192, 15088, 22384, 32177, 57359, 64354, 114718, 128708, 229436, 257416, 458872, 514832, 917744, 1319257, 2638514, 5277028, 10554056, 21108112]

約数ペア:

[(1, 21108112), (2, 10554056), (4, 5277028), (8, 2638514), (16, 1319257), (23, 917744), (41, 514832), (46, 458872), (82, 257416), (92, 229436), (164, 128708), (184, 114718), (328, 64354), (368, 57359), (656, 32177), (943, 22384), (1399, 15088), (1886, 11192), (2798, 7544), (3772, 5596)]