21405608

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9323}}^1$

素因数の和:9377

約数の個数: 32

約数和(自身を含む): 46992960

約数和(自身を除く): 25587352

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 9323, 18646, 37292, 65261, 74584, 130522, 261044, 382243, 522088, 764486, 1528972, 2675701, 3057944, 5351402, 10702804, 21405608]

約数ペア:

[(1, 21405608), (2, 10702804), (4, 5351402), (7, 3057944), (8, 2675701), (14, 1528972), (28, 764486), (41, 522088), (56, 382243), (82, 261044), (164, 130522), (287, 74584), (328, 65261), (574, 37292), (1148, 18646), (2296, 9323)]