21804840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1637}}^1$

素因数の和:1691

約数の個数: 96

約数和(自身を含む): 72825480

約数和(自身を除く): 51020640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 222, 296, 333, 360, 370, 444, 555, 666, 740, 888, 1110, 1332, 1480, 1637, 1665, 2220, 2664, 3274, 3330, 4440, 4911, 6548, 6660, 8185, 9822, 13096, 13320, 14733, 16370, 19644, 24555, 29466, 32740, 39288, 49110, 58932, 60569, 65480, 73665, 98220, 117864, 121138, 147330, 181707, 196440, 242276, 294660, 302845, 363414, 484552, 545121, 589320, 605690, 726828, 908535, 1090242, 1211380, 1453656, 1817070, 2180484, 2422760, 2725605, 3634140, 4360968, 5451210, 7268280, 10902420, 21804840]

約数ペア:

[(1, 21804840), (2, 10902420), (3, 7268280), (4, 5451210), (5, 4360968), (6, 3634140), (8, 2725605), (9, 2422760), (10, 2180484), (12, 1817070), (15, 1453656), (18, 1211380), (20, 1090242), (24, 908535), (30, 726828), (36, 605690), (37, 589320), (40, 545121), (45, 484552), (60, 363414), (72, 302845), (74, 294660), (90, 242276), (111, 196440), (120, 181707), (148, 147330), (180, 121138), (185, 117864), (222, 98220), (296, 73665), (333, 65480), (360, 60569), (370, 58932), (444, 49110), (555, 39288), (666, 32740), (740, 29466), (888, 24555), (1110, 19644), (1332, 16370), (1480, 14733), (1637, 13320), (1665, 13096), (2220, 9822), (2664, 8185), (3274, 6660), (3330, 6548), (4440, 4911)]