15420251

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:160

約数の個数: 32

約数和(自身を含む): 20236800

約数和(自身を除く): 4816549

約数列:

[1, 7, 11, 49, 61, 67, 77, 343, 427, 469, 539, 671, 737, 2989, 3283, 3773, 4087, 4697, 5159, 20923, 22981, 28609, 32879, 36113, 44957, 200263, 230153, 252791, 314699, 1401841, 2202893, 15420251]

約数ペア:

[(1, 15420251), (7, 2202893), (11, 1401841), (49, 314699), (61, 252791), (67, 230153), (77, 200263), (343, 44957), (427, 36113), (469, 32879), (539, 28609), (671, 22981), (737, 20923), (2989, 5159), (3283, 4697), (3773, 4087)]