21930490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 40960080

約数和(自身を除く): 19029590

約数列:

[1, 2, 5, 10, 41, 82, 89, 178, 205, 410, 445, 601, 890, 1202, 3005, 3649, 6010, 7298, 18245, 24641, 36490, 49282, 53489, 106978, 123205, 246410, 267445, 534890, 2193049, 4386098, 10965245, 21930490]

約数ペア:

[(1, 21930490), (2, 10965245), (5, 4386098), (10, 2193049), (41, 534890), (82, 267445), (89, 246410), (178, 123205), (205, 106978), (410, 53489), (445, 49282), (601, 36490), (890, 24641), (1202, 18245), (3005, 7298), (3649, 6010)]