21357456

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 58180800

約数和(自身を除く): 36823344

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 67, 87, 116, 134, 174, 201, 229, 232, 268, 348, 402, 458, 464, 536, 687, 696, 804, 916, 1072, 1374, 1392, 1608, 1832, 1943, 2748, 3216, 3664, 3886, 5496, 5829, 6641, 7772, 10992, 11658, 13282, 15343, 15544, 19923, 23316, 26564, 30686, 31088, 39846, 46029, 46632, 53128, 61372, 79692, 92058, 93264, 106256, 122744, 159384, 184116, 245488, 318768, 368232, 444947, 736464, 889894, 1334841, 1779788, 2669682, 3559576, 5339364, 7119152, 10678728, 21357456]

約数ペア:

[(1, 21357456), (2, 10678728), (3, 7119152), (4, 5339364), (6, 3559576), (8, 2669682), (12, 1779788), (16, 1334841), (24, 889894), (29, 736464), (48, 444947), (58, 368232), (67, 318768), (87, 245488), (116, 184116), (134, 159384), (174, 122744), (201, 106256), (229, 93264), (232, 92058), (268, 79692), (348, 61372), (402, 53128), (458, 46632), (464, 46029), (536, 39846), (687, 31088), (696, 30686), (804, 26564), (916, 23316), (1072, 19923), (1374, 15544), (1392, 15343), (1608, 13282), (1832, 11658), (1943, 10992), (2748, 7772), (3216, 6641), (3664, 5829), (3886, 5496)]