21000295692

素因数分解:

$2^2\times 3^2\times {\mathrm{229}}^1\times {\mathrm{1307}}^1\times {\mathrm{1949}}^1$

素因数の和:3495

約数の個数: 72

約数和(自身を含む): 53384058000

約数和(自身を除く): 32383762308

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 229, 458, 687, 916, 1307, 1374, 1949, 2061, 2614, 2748, 3898, 3921, 4122, 5228, 5847, 7796, 7842, 8244, 11694, 11763, 15684, 17541, 23388, 23526, 35082, 47052, 70164, 299303, 446321, 598606, 892642, 897909, 1197212, 1338963, 1785284, 1795818, 2547343, 2677926, 2693727, 3591636, 4016889, 5094686, 5355852, 5387454, 7642029, 8033778, 10189372, 10774908, 15284058, 16067556, 22926087, 30568116, 45852174, 91704348, 583341547, 1166683094, 1750024641, 2333366188, 3500049282, 5250073923, 7000098564, 10500147846, 21000295692]

約数ペア:

[(1, 21000295692), (2, 10500147846), (3, 7000098564), (4, 5250073923), (6, 3500049282), (9, 2333366188), (12, 1750024641), (18, 1166683094), (36, 583341547), (229, 91704348), (458, 45852174), (687, 30568116), (916, 22926087), (1307, 16067556), (1374, 15284058), (1949, 10774908), (2061, 10189372), (2614, 8033778), (2748, 7642029), (3898, 5387454), (3921, 5355852), (4122, 5094686), (5228, 4016889), (5847, 3591636), (7796, 2693727), (7842, 2677926), (8244, 2547343), (11694, 1795818), (11763, 1785284), (15684, 1338963), (17541, 1197212), (23388, 897909), (23526, 892642), (35082, 598606), (47052, 446321), (70164, 299303)]