20510616

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:293

約数の個数: 96

約数和(自身を含む): 60575040

約数和(自身を除く): 40064424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 107, 147, 163, 168, 196, 214, 294, 321, 326, 392, 428, 489, 588, 642, 652, 749, 856, 978, 1141, 1176, 1284, 1304, 1498, 1956, 2247, 2282, 2568, 2996, 3423, 3912, 4494, 4564, 5243, 5992, 6846, 7987, 8988, 9128, 10486, 13692, 15729, 15974, 17441, 17976, 20972, 23961, 27384, 31458, 31948, 34882, 41944, 47922, 52323, 62916, 63896, 69764, 95844, 104646, 122087, 125832, 139528, 191688, 209292, 244174, 366261, 418584, 488348, 732522, 854609, 976696, 1465044, 1709218, 2563827, 2930088, 3418436, 5127654, 6836872, 10255308, 20510616]

約数ペア:

[(1, 20510616), (2, 10255308), (3, 6836872), (4, 5127654), (6, 3418436), (7, 2930088), (8, 2563827), (12, 1709218), (14, 1465044), (21, 976696), (24, 854609), (28, 732522), (42, 488348), (49, 418584), (56, 366261), (84, 244174), (98, 209292), (107, 191688), (147, 139528), (163, 125832), (168, 122087), (196, 104646), (214, 95844), (294, 69764), (321, 63896), (326, 62916), (392, 52323), (428, 47922), (489, 41944), (588, 34882), (642, 31948), (652, 31458), (749, 27384), (856, 23961), (978, 20972), (1141, 17976), (1176, 17441), (1284, 15974), (1304, 15729), (1498, 13692), (1956, 10486), (2247, 9128), (2282, 8988), (2568, 7987), (2996, 6846), (3423, 5992), (3912, 5243), (4494, 4564)]