21806460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9319}}^1$

素因数の和:9347

約数の個数: 72

約数和(自身を含む): 71242080

約数和(自身を除く): 49435620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9319, 18638, 27957, 37276, 46595, 55914, 83871, 93190, 111828, 121147, 139785, 167742, 186380, 242294, 279570, 335484, 363441, 419355, 484588, 559140, 605735, 726882, 838710, 1090323, 1211470, 1453764, 1677420, 1817205, 2180646, 2422940, 3634410, 4361292, 5451615, 7268820, 10903230, 21806460]

約数ペア:

[(1, 21806460), (2, 10903230), (3, 7268820), (4, 5451615), (5, 4361292), (6, 3634410), (9, 2422940), (10, 2180646), (12, 1817205), (13, 1677420), (15, 1453764), (18, 1211470), (20, 1090323), (26, 838710), (30, 726882), (36, 605735), (39, 559140), (45, 484588), (52, 419355), (60, 363441), (65, 335484), (78, 279570), (90, 242294), (117, 186380), (130, 167742), (156, 139785), (180, 121147), (195, 111828), (234, 93190), (260, 83871), (390, 55914), (468, 46595), (585, 37276), (780, 27957), (1170, 18638), (2340, 9319)]