20502664

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28163}}^1$

素因数の和:28189

約数の個数: 32

約数和(自身を含む): 47315520

約数和(自身を除く): 26812856

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28163, 56326, 112652, 197141, 225304, 366119, 394282, 732238, 788564, 1464476, 1577128, 2562833, 2928952, 5125666, 10251332, 20502664]

約数ペア:

[(1, 20502664), (2, 10251332), (4, 5125666), (7, 2928952), (8, 2562833), (13, 1577128), (14, 1464476), (26, 788564), (28, 732238), (52, 394282), (56, 366119), (91, 225304), (104, 197141), (182, 112652), (364, 56326), (728, 28163)]