21688512

素因数分解:

$2^6\times 3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:166

約数の個数: 112

約数和(自身を含む): 61155072

約数和(自身を除く): 39466560

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 37, 43, 48, 64, 71, 74, 86, 96, 111, 129, 142, 148, 172, 192, 213, 222, 258, 284, 296, 344, 426, 444, 516, 568, 592, 688, 852, 888, 1032, 1136, 1184, 1376, 1591, 1704, 1776, 2064, 2272, 2368, 2627, 2752, 3053, 3182, 3408, 3552, 4128, 4544, 4773, 5254, 6106, 6364, 6816, 7104, 7881, 8256, 9159, 9546, 10508, 12212, 12728, 13632, 15762, 18318, 19092, 21016, 24424, 25456, 31524, 36636, 38184, 42032, 48848, 50912, 63048, 73272, 76368, 84064, 97696, 101824, 112961, 126096, 146544, 152736, 168128, 195392, 225922, 252192, 293088, 305472, 338883, 451844, 504384, 586176, 677766, 903688, 1355532, 1807376, 2711064, 3614752, 5422128, 7229504, 10844256, 21688512]

約数ペア:

[(1, 21688512), (2, 10844256), (3, 7229504), (4, 5422128), (6, 3614752), (8, 2711064), (12, 1807376), (16, 1355532), (24, 903688), (32, 677766), (37, 586176), (43, 504384), (48, 451844), (64, 338883), (71, 305472), (74, 293088), (86, 252192), (96, 225922), (111, 195392), (129, 168128), (142, 152736), (148, 146544), (172, 126096), (192, 112961), (213, 101824), (222, 97696), (258, 84064), (284, 76368), (296, 73272), (344, 63048), (426, 50912), (444, 48848), (516, 42032), (568, 38184), (592, 36636), (688, 31524), (852, 25456), (888, 24424), (1032, 21016), (1136, 19092), (1184, 18318), (1376, 15762), (1591, 13632), (1704, 12728), (1776, 12212), (2064, 10508), (2272, 9546), (2368, 9159), (2627, 8256), (2752, 7881), (3053, 7104), (3182, 6816), (3408, 6364), (3552, 6106), (4128, 5254), (4544, 4773)]