20665736

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28387}}^1$

素因数の和:28413

約数の個数: 32

約数和(自身を含む): 47691840

約数和(自身を除く): 27026104

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28387, 56774, 113548, 198709, 227096, 369031, 397418, 738062, 794836, 1476124, 1589672, 2583217, 2952248, 5166434, 10332868, 20665736]

約数ペア:

[(1, 20665736), (2, 10332868), (4, 5166434), (7, 2952248), (8, 2583217), (13, 1589672), (14, 1476124), (26, 794836), (28, 738062), (52, 397418), (56, 369031), (91, 227096), (104, 198709), (182, 113548), (364, 56774), (728, 28387)]