21615690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{8681}}^1$

素因数の和:8774

約数の個数: 32

約数和(自身を含む): 52508736

約数和(自身を除く): 30893046

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 83, 166, 249, 415, 498, 830, 1245, 2490, 8681, 17362, 26043, 43405, 52086, 86810, 130215, 260430, 720523, 1441046, 2161569, 3602615, 4323138, 7205230, 10807845, 21615690]

約数ペア:

[(1, 21615690), (2, 10807845), (3, 7205230), (5, 4323138), (6, 3602615), (10, 2161569), (15, 1441046), (30, 720523), (83, 260430), (166, 130215), (249, 86810), (415, 52086), (498, 43405), (830, 26043), (1245, 17362), (2490, 8681)]