21497788184

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{309481}}^1$

素因数の和:309963

約数の個数: 32

約数和(自身を含む): 42522826800

約数和(自身を除く): 21025038616

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 457, 914, 1828, 3656, 8683, 17366, 34732, 69464, 309481, 618962, 1237924, 2475848, 5880139, 11760278, 23520556, 47041112, 141432817, 282865634, 565731268, 1131462536, 2687223523, 5374447046, 10748894092, 21497788184]

約数ペア:

[(1, 21497788184), (2, 10748894092), (4, 5374447046), (8, 2687223523), (19, 1131462536), (38, 565731268), (76, 282865634), (152, 141432817), (457, 47041112), (914, 23520556), (1828, 11760278), (3656, 5880139), (8683, 2475848), (17366, 1237924), (34732, 618962), (69464, 309481)]