21490070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{587}}^1$

素因数の和:1124

約数の個数: 32

約数和(自身を含む): 44368128

約数和(自身を除く): 22878058

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 523, 587, 1046, 1174, 2615, 2935, 3661, 4109, 5230, 5870, 7322, 8218, 18305, 20545, 36610, 41090, 307001, 614002, 1535005, 2149007, 3070010, 4298014, 10745035, 21490070]

約数ペア:

[(1, 21490070), (2, 10745035), (5, 4298014), (7, 3070010), (10, 2149007), (14, 1535005), (35, 614002), (70, 307001), (523, 41090), (587, 36610), (1046, 20545), (1174, 18305), (2615, 8218), (2935, 7322), (3661, 5870), (4109, 5230)]