189898408

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{21599}}^1$

素因数の和:21769

約数の個数: 32

約数和(自身を含む): 409536000

約数和(自身を除く): 219637592

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 4396, 8792, 21599, 43198, 86396, 151193, 172792, 302386, 604772, 1209544, 3391043, 6782086, 13564172, 23737301, 27128344, 47474602, 94949204, 189898408]

約数ペア:

[(1, 189898408), (2, 94949204), (4, 47474602), (7, 27128344), (8, 23737301), (14, 13564172), (28, 6782086), (56, 3391043), (157, 1209544), (314, 604772), (628, 302386), (1099, 172792), (1256, 151193), (2198, 86396), (4396, 43198), (8792, 21599)]