21542760

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:193

約数の個数: 160

約数和(自身を含む): 74269800

約数和(自身を除く): 52727040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 81, 90, 108, 109, 120, 122, 135, 162, 180, 183, 216, 218, 244, 270, 305, 324, 327, 360, 366, 405, 436, 488, 540, 545, 549, 610, 648, 654, 732, 810, 872, 915, 981, 1080, 1090, 1098, 1220, 1308, 1464, 1620, 1635, 1647, 1830, 1962, 2180, 2196, 2440, 2616, 2745, 2943, 3240, 3270, 3294, 3660, 3924, 4360, 4392, 4905, 4941, 5490, 5886, 6540, 6588, 6649, 7320, 7848, 8235, 8829, 9810, 9882, 10980, 11772, 13080, 13176, 13298, 14715, 16470, 17658, 19620, 19764, 19947, 21960, 23544, 24705, 26596, 29430, 32940, 33245, 35316, 39240, 39528, 39894, 44145, 49410, 53192, 58860, 59841, 65880, 66490, 70632, 79788, 88290, 98820, 99735, 117720, 119682, 132980, 159576, 176580, 179523, 197640, 199470, 239364, 265960, 299205, 353160, 359046, 398940, 478728, 538569, 598410, 718092, 797880, 897615, 1077138, 1196820, 1436184, 1795230, 2154276, 2393640, 2692845, 3590460, 4308552, 5385690, 7180920, 10771380, 21542760]

約数ペア:

[(1, 21542760), (2, 10771380), (3, 7180920), (4, 5385690), (5, 4308552), (6, 3590460), (8, 2692845), (9, 2393640), (10, 2154276), (12, 1795230), (15, 1436184), (18, 1196820), (20, 1077138), (24, 897615), (27, 797880), (30, 718092), (36, 598410), (40, 538569), (45, 478728), (54, 398940), (60, 359046), (61, 353160), (72, 299205), (81, 265960), (90, 239364), (108, 199470), (109, 197640), (120, 179523), (122, 176580), (135, 159576), (162, 132980), (180, 119682), (183, 117720), (216, 99735), (218, 98820), (244, 88290), (270, 79788), (305, 70632), (324, 66490), (327, 65880), (360, 59841), (366, 58860), (405, 53192), (436, 49410), (488, 44145), (540, 39894), (545, 39528), (549, 39240), (610, 35316), (648, 33245), (654, 32940), (732, 29430), (810, 26596), (872, 24705), (915, 23544), (981, 21960), (1080, 19947), (1090, 19764), (1098, 19620), (1220, 17658), (1308, 16470), (1464, 14715), (1620, 13298), (1635, 13176), (1647, 13080), (1830, 11772), (1962, 10980), (2180, 9882), (2196, 9810), (2440, 8829), (2616, 8235), (2745, 7848), (2943, 7320), (3240, 6649), (3270, 6588), (3294, 6540), (3660, 5886), (3924, 5490), (4360, 4941), (4392, 4905)]