21038389630

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^2\times {\mathrm{6397}}^1$

素因数の和:6641

約数の個数: 48

約数和(自身を含む): 39480061824

約数和(自身を除く): 18441672194

約数列:

[1, 2, 5, 10, 31, 62, 103, 155, 206, 310, 515, 1030, 3193, 6386, 6397, 10609, 12794, 15965, 21218, 31930, 31985, 53045, 63970, 106090, 198307, 328879, 396614, 657758, 658891, 991535, 1317782, 1644395, 1983070, 3288790, 3294455, 6588910, 20425621, 40851242, 67865773, 102128105, 135731546, 204256210, 339328865, 678657730, 2103838963, 4207677926, 10519194815, 21038389630]

約数ペア:

[(1, 21038389630), (2, 10519194815), (5, 4207677926), (10, 2103838963), (31, 678657730), (62, 339328865), (103, 204256210), (155, 135731546), (206, 102128105), (310, 67865773), (515, 40851242), (1030, 20425621), (3193, 6588910), (6386, 3294455), (6397, 3288790), (10609, 1983070), (12794, 1644395), (15965, 1317782), (21218, 991535), (31930, 658891), (31985, 657758), (53045, 396614), (63970, 328879), (106090, 198307)]