21204168

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{51971}}^1$

素因数の和:51997

約数の個数: 32

約数和(自身を含む): 56129760

約数和(自身を除く): 34925592

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 51971, 103942, 155913, 207884, 311826, 415768, 623652, 883507, 1247304, 1767014, 2650521, 3534028, 5301042, 7068056, 10602084, 21204168]

約数ペア:

[(1, 21204168), (2, 10602084), (3, 7068056), (4, 5301042), (6, 3534028), (8, 2650521), (12, 1767014), (17, 1247304), (24, 883507), (34, 623652), (51, 415768), (68, 311826), (102, 207884), (136, 155913), (204, 103942), (408, 51971)]