21047292

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^4$

素因数の和:85

約数の個数: 90

約数和(自身を含む): 64603448

約数和(自身を除く): 43556156

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, 289, 306, 357, 476, 578, 612, 714, 867, 1071, 1156, 1428, 1734, 2023, 2142, 2601, 3468, 4046, 4284, 4913, 5202, 6069, 8092, 9826, 10404, 12138, 14739, 18207, 19652, 24276, 29478, 34391, 36414, 44217, 58956, 68782, 72828, 83521, 88434, 103173, 137564, 167042, 176868, 206346, 250563, 309519, 334084, 412692, 501126, 584647, 619038, 751689, 1002252, 1169294, 1238076, 1503378, 1753941, 2338588, 3006756, 3507882, 5261823, 7015764, 10523646, 21047292]

約数ペア:

[(1, 21047292), (2, 10523646), (3, 7015764), (4, 5261823), (6, 3507882), (7, 3006756), (9, 2338588), (12, 1753941), (14, 1503378), (17, 1238076), (18, 1169294), (21, 1002252), (28, 751689), (34, 619038), (36, 584647), (42, 501126), (51, 412692), (63, 334084), (68, 309519), (84, 250563), (102, 206346), (119, 176868), (126, 167042), (153, 137564), (204, 103173), (238, 88434), (252, 83521), (289, 72828), (306, 68782), (357, 58956), (476, 44217), (578, 36414), (612, 34391), (714, 29478), (867, 24276), (1071, 19652), (1156, 18207), (1428, 14739), (1734, 12138), (2023, 10404), (2142, 9826), (2601, 8092), (3468, 6069), (4046, 5202), (4284, 4913)]