21173760

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{919}}^1$

素因数の和:948

約数の個数: 120

約数和(自身を含む): 73410480

約数和(自身を除く): 52236720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 919, 960, 1152, 1280, 1440, 1536, 1838, 1920, 2304, 2560, 2757, 2880, 3676, 3840, 4595, 4608, 5514, 5760, 7352, 7680, 8271, 9190, 11028, 11520, 13785, 14704, 16542, 18380, 22056, 23040, 27570, 29408, 33084, 36760, 41355, 44112, 55140, 58816, 66168, 73520, 82710, 88224, 110280, 117632, 132336, 147040, 165420, 176448, 220560, 235264, 264672, 294080, 330840, 352896, 441120, 470528, 529344, 588160, 661680, 705792, 882240, 1058688, 1176320, 1323360, 1411584, 1764480, 2117376, 2352640, 2646720, 3528960, 4234752, 5293440, 7057920, 10586880, 21173760]

約数ペア:

[(1, 21173760), (2, 10586880), (3, 7057920), (4, 5293440), (5, 4234752), (6, 3528960), (8, 2646720), (9, 2352640), (10, 2117376), (12, 1764480), (15, 1411584), (16, 1323360), (18, 1176320), (20, 1058688), (24, 882240), (30, 705792), (32, 661680), (36, 588160), (40, 529344), (45, 470528), (48, 441120), (60, 352896), (64, 330840), (72, 294080), (80, 264672), (90, 235264), (96, 220560), (120, 176448), (128, 165420), (144, 147040), (160, 132336), (180, 117632), (192, 110280), (240, 88224), (256, 82710), (288, 73520), (320, 66168), (360, 58816), (384, 55140), (480, 44112), (512, 41355), (576, 36760), (640, 33084), (720, 29408), (768, 27570), (919, 23040), (960, 22056), (1152, 18380), (1280, 16542), (1440, 14704), (1536, 13785), (1838, 11520), (1920, 11028), (2304, 9190), (2560, 8271), (2757, 7680), (2880, 7352), (3676, 5760), (3840, 5514), (4595, 4608)]