20835822

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 49674240

約数和(自身を除く): 28838418

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 83, 86, 129, 139, 166, 249, 258, 278, 301, 417, 498, 581, 602, 834, 903, 973, 1162, 1743, 1806, 1946, 2919, 3486, 3569, 5838, 5977, 7138, 10707, 11537, 11954, 17931, 21414, 23074, 24983, 34611, 35862, 41839, 49966, 69222, 74949, 80759, 83678, 125517, 149898, 161518, 242277, 251034, 484554, 496091, 992182, 1488273, 2976546, 3472637, 6945274, 10417911, 20835822]

約数ペア:

[(1, 20835822), (2, 10417911), (3, 6945274), (6, 3472637), (7, 2976546), (14, 1488273), (21, 992182), (42, 496091), (43, 484554), (83, 251034), (86, 242277), (129, 161518), (139, 149898), (166, 125517), (249, 83678), (258, 80759), (278, 74949), (301, 69222), (417, 49966), (498, 41839), (581, 35862), (602, 34611), (834, 24983), (903, 23074), (973, 21414), (1162, 17931), (1743, 11954), (1806, 11537), (1946, 10707), (2919, 7138), (3486, 5977), (3569, 5838)]