21349195

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{677}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 31632768

約数和(自身を除く): 10283573

約数列:

[1, 5, 7, 17, 35, 53, 85, 119, 265, 371, 595, 677, 901, 1855, 3385, 4505, 4739, 6307, 11509, 23695, 31535, 35881, 57545, 80563, 179405, 251167, 402815, 609977, 1255835, 3049885, 4269839, 21349195]

約数ペア:

[(1, 21349195), (5, 4269839), (7, 3049885), (17, 1255835), (35, 609977), (53, 402815), (85, 251167), (119, 179405), (265, 80563), (371, 57545), (595, 35881), (677, 31535), (901, 23695), (1855, 11509), (3385, 6307), (4505, 4739)]