20806528509

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1\times {\mathrm{2099}}^1$

素因数の和:3063

約数の個数: 64

約数和(自身を含む): 34320384000

約数和(自身を除く): 13513855491

約数列:

[1, 3, 9, 13, 27, 31, 39, 93, 117, 279, 351, 403, 837, 911, 1209, 2099, 2733, 3627, 6297, 8199, 10881, 11843, 18891, 24597, 27287, 28241, 35529, 56673, 65069, 81861, 84723, 106587, 195207, 245583, 254169, 319761, 367133, 585621, 736749, 762507, 845897, 1101399, 1756863, 1912189, 2537691, 3304197, 5736567, 7613073, 9912591, 17209701, 22839219, 24858457, 51629103, 59277859, 74575371, 177833577, 223726113, 533500731, 671178339, 770612167, 1600502193, 2311836501, 6935509503, 20806528509]

約数ペア:

[(1, 20806528509), (3, 6935509503), (9, 2311836501), (13, 1600502193), (27, 770612167), (31, 671178339), (39, 533500731), (93, 223726113), (117, 177833577), (279, 74575371), (351, 59277859), (403, 51629103), (837, 24858457), (911, 22839219), (1209, 17209701), (2099, 9912591), (2733, 7613073), (3627, 5736567), (6297, 3304197), (8199, 2537691), (10881, 1912189), (11843, 1756863), (18891, 1101399), (24597, 845897), (27287, 762507), (28241, 736749), (35529, 585621), (56673, 367133), (65069, 319761), (81861, 254169), (84723, 245583), (106587, 195207)]