21458556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5009}}^1$

素因数の和:5043

約数の個数: 72

約数和(自身を含む): 65651040

約数和(自身を除く): 44192484

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 204, 238, 252, 306, 357, 476, 612, 714, 1071, 1428, 2142, 4284, 5009, 10018, 15027, 20036, 30054, 35063, 45081, 60108, 70126, 85153, 90162, 105189, 140252, 170306, 180324, 210378, 255459, 315567, 340612, 420756, 510918, 596071, 631134, 766377, 1021836, 1192142, 1262268, 1532754, 1788213, 2384284, 3065508, 3576426, 5364639, 7152852, 10729278, 21458556]

約数ペア:

[(1, 21458556), (2, 10729278), (3, 7152852), (4, 5364639), (6, 3576426), (7, 3065508), (9, 2384284), (12, 1788213), (14, 1532754), (17, 1262268), (18, 1192142), (21, 1021836), (28, 766377), (34, 631134), (36, 596071), (42, 510918), (51, 420756), (63, 340612), (68, 315567), (84, 255459), (102, 210378), (119, 180324), (126, 170306), (153, 140252), (204, 105189), (238, 90162), (252, 85153), (306, 70126), (357, 60108), (476, 45081), (612, 35063), (714, 30054), (1071, 20036), (1428, 15027), (2142, 10018), (4284, 5009)]