21117876

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7963}}^1$

素因数の和:8000

約数の個数: 48

約数和(自身を含む): 56193984

約数和(自身を除く): 35076108

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 442, 663, 884, 1326, 2652, 7963, 15926, 23889, 31852, 47778, 95556, 103519, 135371, 207038, 270742, 310557, 406113, 414076, 541484, 621114, 812226, 1242228, 1624452, 1759823, 3519646, 5279469, 7039292, 10558938, 21117876]

約数ペア:

[(1, 21117876), (2, 10558938), (3, 7039292), (4, 5279469), (6, 3519646), (12, 1759823), (13, 1624452), (17, 1242228), (26, 812226), (34, 621114), (39, 541484), (51, 414076), (52, 406113), (68, 310557), (78, 270742), (102, 207038), (156, 135371), (204, 103519), (221, 95556), (442, 47778), (663, 31852), (884, 23889), (1326, 15926), (2652, 7963)]