21403512

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^2\times {\mathrm{1759}}^1$

素因数の和:1797

約数の個数: 72

約数和(自身を含む): 62805600

約数和(自身を除く): 41402088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 169, 234, 312, 338, 468, 507, 676, 936, 1014, 1352, 1521, 1759, 2028, 3042, 3518, 4056, 5277, 6084, 7036, 10554, 12168, 14072, 15831, 21108, 22867, 31662, 42216, 45734, 63324, 68601, 91468, 126648, 137202, 182936, 205803, 274404, 297271, 411606, 548808, 594542, 823212, 891813, 1189084, 1646424, 1783626, 2378168, 2675439, 3567252, 5350878, 7134504, 10701756, 21403512]

約数ペア:

[(1, 21403512), (2, 10701756), (3, 7134504), (4, 5350878), (6, 3567252), (8, 2675439), (9, 2378168), (12, 1783626), (13, 1646424), (18, 1189084), (24, 891813), (26, 823212), (36, 594542), (39, 548808), (52, 411606), (72, 297271), (78, 274404), (104, 205803), (117, 182936), (156, 137202), (169, 126648), (234, 91468), (312, 68601), (338, 63324), (468, 45734), (507, 42216), (676, 31662), (936, 22867), (1014, 21108), (1352, 15831), (1521, 14072), (1759, 12168), (2028, 10554), (3042, 7036), (3518, 6084), (4056, 5277)]