21304821900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{510907}}^1$

素因数の和:511063

約数の個数: 72

約数和(自身を含む): 62085540160

約数和(自身を除く): 40780718260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 139, 150, 278, 300, 417, 556, 695, 834, 1390, 1668, 2085, 2780, 3475, 4170, 6950, 8340, 10425, 13900, 20850, 41700, 510907, 1021814, 1532721, 2043628, 2554535, 3065442, 5109070, 6130884, 7663605, 10218140, 12772675, 15327210, 25545350, 30654420, 38318025, 51090700, 71016073, 76636050, 142032146, 153272100, 213048219, 284064292, 355080365, 426096438, 710160730, 852192876, 1065241095, 1420321460, 1775401825, 2130482190, 3550803650, 4260964380, 5326205475, 7101607300, 10652410950, 21304821900]

約数ペア:

[(1, 21304821900), (2, 10652410950), (3, 7101607300), (4, 5326205475), (5, 4260964380), (6, 3550803650), (10, 2130482190), (12, 1775401825), (15, 1420321460), (20, 1065241095), (25, 852192876), (30, 710160730), (50, 426096438), (60, 355080365), (75, 284064292), (100, 213048219), (139, 153272100), (150, 142032146), (278, 76636050), (300, 71016073), (417, 51090700), (556, 38318025), (695, 30654420), (834, 25545350), (1390, 15327210), (1668, 12772675), (2085, 10218140), (2780, 7663605), (3475, 6130884), (4170, 5109070), (6950, 3065442), (8340, 2554535), (10425, 2043628), (13900, 1532721), (20850, 1021814), (41700, 510907)]