21354039

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5059}}^1$

素因数の和:5139

約数の個数: 24

約数和(自身を含む): 35784320

約数和(自身を除く): 14430281

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 5059, 15177, 35413, 45531, 106239, 318717, 338953, 1016859, 2372671, 3050577, 7118013, 21354039]

約数ペア:

[(1, 21354039), (3, 7118013), (7, 3050577), (9, 2372671), (21, 1016859), (63, 338953), (67, 318717), (201, 106239), (469, 45531), (603, 35413), (1407, 15177), (4221, 5059)]