20783672

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28549}}^1$

素因数の和:28575

約数の個数: 32

約数和(自身を含む): 47964000

約数和(自身を除く): 27180328

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28549, 57098, 114196, 199843, 228392, 371137, 399686, 742274, 799372, 1484548, 1598744, 2597959, 2969096, 5195918, 10391836, 20783672]

約数ペア:

[(1, 20783672), (2, 10391836), (4, 5195918), (7, 2969096), (8, 2597959), (13, 1598744), (14, 1484548), (26, 799372), (28, 742274), (52, 399686), (56, 371137), (91, 228392), (104, 199843), (182, 114196), (364, 57098), (728, 28549)]