21439800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:342

約数の個数: 144

約数和(自身を含む): 73942440

約数和(自身を除く): 52502640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 43, 45, 50, 60, 72, 75, 86, 90, 100, 120, 129, 150, 172, 180, 200, 215, 225, 258, 277, 300, 344, 360, 387, 430, 450, 516, 554, 600, 645, 774, 831, 860, 900, 1032, 1075, 1108, 1290, 1385, 1548, 1662, 1720, 1800, 1935, 2150, 2216, 2493, 2580, 2770, 3096, 3225, 3324, 3870, 4155, 4300, 4986, 5160, 5540, 6450, 6648, 6925, 7740, 8310, 8600, 9675, 9972, 11080, 11911, 12465, 12900, 13850, 15480, 16620, 19350, 19944, 20775, 23822, 24930, 25800, 27700, 33240, 35733, 38700, 41550, 47644, 49860, 55400, 59555, 62325, 71466, 77400, 83100, 95288, 99720, 107199, 119110, 124650, 142932, 166200, 178665, 214398, 238220, 249300, 285864, 297775, 357330, 428796, 476440, 498600, 535995, 595550, 714660, 857592, 893325, 1071990, 1191100, 1429320, 1786650, 2143980, 2382200, 2679975, 3573300, 4287960, 5359950, 7146600, 10719900, 21439800]

約数ペア:

[(1, 21439800), (2, 10719900), (3, 7146600), (4, 5359950), (5, 4287960), (6, 3573300), (8, 2679975), (9, 2382200), (10, 2143980), (12, 1786650), (15, 1429320), (18, 1191100), (20, 1071990), (24, 893325), (25, 857592), (30, 714660), (36, 595550), (40, 535995), (43, 498600), (45, 476440), (50, 428796), (60, 357330), (72, 297775), (75, 285864), (86, 249300), (90, 238220), (100, 214398), (120, 178665), (129, 166200), (150, 142932), (172, 124650), (180, 119110), (200, 107199), (215, 99720), (225, 95288), (258, 83100), (277, 77400), (300, 71466), (344, 62325), (360, 59555), (387, 55400), (430, 49860), (450, 47644), (516, 41550), (554, 38700), (600, 35733), (645, 33240), (774, 27700), (831, 25800), (860, 24930), (900, 23822), (1032, 20775), (1075, 19944), (1108, 19350), (1290, 16620), (1385, 15480), (1548, 13850), (1662, 12900), (1720, 12465), (1800, 11911), (1935, 11080), (2150, 9972), (2216, 9675), (2493, 8600), (2580, 8310), (2770, 7740), (3096, 6925), (3225, 6648), (3324, 6450), (3870, 5540), (4155, 5160), (4300, 4986)]