21545090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7507}}^1$

素因数の和:7562

約数の個数: 32

約数和(自身を含む): 45408384

約数和(自身を除く): 23863294

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870, 7507, 15014, 37535, 52549, 75070, 105098, 262745, 307787, 525490, 615574, 1538935, 2154509, 3077870, 4309018, 10772545, 21545090]

約数ペア:

[(1, 21545090), (2, 10772545), (5, 4309018), (7, 3077870), (10, 2154509), (14, 1538935), (35, 615574), (41, 525490), (70, 307787), (82, 262745), (205, 105098), (287, 75070), (410, 52549), (574, 37535), (1435, 15014), (2870, 7507)]