21205476

素因数分解:

$2^2\times 3^4\times {\mathrm{65449}}^1$

素因数の和:65465

約数の個数: 30

約数和(自身を含む): 55436150

約数和(自身を除く): 34230674

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 65449, 130898, 196347, 261796, 392694, 589041, 785388, 1178082, 1767123, 2356164, 3534246, 5301369, 7068492, 10602738, 21205476]

約数ペア:

[(1, 21205476), (2, 10602738), (3, 7068492), (4, 5301369), (6, 3534246), (9, 2356164), (12, 1767123), (18, 1178082), (27, 785388), (36, 589041), (54, 392694), (81, 261796), (108, 196347), (162, 130898), (324, 65449)]