20245778

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 35735808

約数和(自身を除く): 15490030

約数列:

[1, 2, 7, 14, 61, 122, 151, 157, 302, 314, 427, 854, 1057, 1099, 2114, 2198, 9211, 9577, 18422, 19154, 23707, 47414, 64477, 67039, 128954, 134078, 165949, 331898, 1446127, 2892254, 10122889, 20245778]

約数ペア:

[(1, 20245778), (2, 10122889), (7, 2892254), (14, 1446127), (61, 331898), (122, 165949), (151, 134078), (157, 128954), (302, 67039), (314, 64477), (427, 47414), (854, 23707), (1057, 19154), (1099, 18422), (2114, 9577), (2198, 9211)]