19994576

素因数分解:

$2^4\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1069}}^1$

素因数の和:1251

約数の個数: 40

約数和(自身を含む): 44580480

約数和(自身を除く): 24585904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 167, 334, 668, 1069, 1169, 1336, 2138, 2338, 2672, 4276, 4676, 7483, 8552, 9352, 14966, 17104, 18704, 29932, 59864, 119728, 178523, 357046, 714092, 1249661, 1428184, 2499322, 2856368, 4998644, 9997288, 19994576]

約数ペア:

[(1, 19994576), (2, 9997288), (4, 4998644), (7, 2856368), (8, 2499322), (14, 1428184), (16, 1249661), (28, 714092), (56, 357046), (112, 178523), (167, 119728), (334, 59864), (668, 29932), (1069, 18704), (1169, 17104), (1336, 14966), (2138, 9352), (2338, 8552), (2672, 7483), (4276, 4676)]