21821200

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{3209}}^1$

素因数の和:3244

約数の個数: 60

約数和(自身を含む): 55526580

約数和(自身を除く): 33705380

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 3209, 3400, 6418, 6800, 12836, 16045, 25672, 32090, 51344, 54553, 64180, 80225, 109106, 128360, 160450, 218212, 256720, 272765, 320900, 436424, 545530, 641800, 872848, 1091060, 1283600, 1363825, 2182120, 2727650, 4364240, 5455300, 10910600, 21821200]

約数ペア:

[(1, 21821200), (2, 10910600), (4, 5455300), (5, 4364240), (8, 2727650), (10, 2182120), (16, 1363825), (17, 1283600), (20, 1091060), (25, 872848), (34, 641800), (40, 545530), (50, 436424), (68, 320900), (80, 272765), (85, 256720), (100, 218212), (136, 160450), (170, 128360), (200, 109106), (272, 80225), (340, 64180), (400, 54553), (425, 51344), (680, 32090), (850, 25672), (1360, 16045), (1700, 12836), (3209, 6800), (3400, 6418)]