21915840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{617}}^1$

素因数の和:674

約数の個数: 112

約数和(自身を含む): 71579232

約数和(自身を除く): 49663392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 148, 160, 185, 192, 222, 240, 296, 320, 370, 444, 480, 555, 592, 617, 740, 888, 960, 1110, 1184, 1234, 1480, 1776, 1851, 2220, 2368, 2468, 2960, 3085, 3552, 3702, 4440, 4936, 5920, 6170, 7104, 7404, 8880, 9255, 9872, 11840, 12340, 14808, 17760, 18510, 19744, 22829, 24680, 29616, 35520, 37020, 39488, 45658, 49360, 59232, 68487, 74040, 91316, 98720, 114145, 118464, 136974, 148080, 182632, 197440, 228290, 273948, 296160, 342435, 365264, 456580, 547896, 592320, 684870, 730528, 913160, 1095792, 1369740, 1461056, 1826320, 2191584, 2739480, 3652640, 4383168, 5478960, 7305280, 10957920, 21915840]

約数ペア:

[(1, 21915840), (2, 10957920), (3, 7305280), (4, 5478960), (5, 4383168), (6, 3652640), (8, 2739480), (10, 2191584), (12, 1826320), (15, 1461056), (16, 1369740), (20, 1095792), (24, 913160), (30, 730528), (32, 684870), (37, 592320), (40, 547896), (48, 456580), (60, 365264), (64, 342435), (74, 296160), (80, 273948), (96, 228290), (111, 197440), (120, 182632), (148, 148080), (160, 136974), (185, 118464), (192, 114145), (222, 98720), (240, 91316), (296, 74040), (320, 68487), (370, 59232), (444, 49360), (480, 45658), (555, 39488), (592, 37020), (617, 35520), (740, 29616), (888, 24680), (960, 22829), (1110, 19744), (1184, 18510), (1234, 17760), (1480, 14808), (1776, 12340), (1851, 11840), (2220, 9872), (2368, 9255), (2468, 8880), (2960, 7404), (3085, 7104), (3552, 6170), (3702, 5920), (4440, 4936)]