20512622403

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{123379}}^1$

素因数の和:123441

約数の個数: 72

約数和(自身を含む): 38398323600

約数和(自身を除く): 17885701197

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 49, 63, 87, 91, 117, 147, 203, 261, 273, 377, 441, 609, 637, 819, 1131, 1421, 1827, 1911, 2639, 3393, 4263, 5733, 7917, 12789, 18473, 23751, 55419, 123379, 166257, 370137, 863653, 1110411, 1603927, 2590959, 3577991, 4811781, 6045571, 7772877, 10733973, 11227489, 14435343, 18136713, 25045937, 32201919, 33682467, 46513883, 54410139, 75137811, 78592423, 101047401, 139541649, 175321559, 225413433, 235777269, 325597181, 418624947, 525964677, 707331807, 976791543, 1577894031, 2279180267, 2930374629, 6837540801, 20512622403]

約数ペア:

[(1, 20512622403), (3, 6837540801), (7, 2930374629), (9, 2279180267), (13, 1577894031), (21, 976791543), (29, 707331807), (39, 525964677), (49, 418624947), (63, 325597181), (87, 235777269), (91, 225413433), (117, 175321559), (147, 139541649), (203, 101047401), (261, 78592423), (273, 75137811), (377, 54410139), (441, 46513883), (609, 33682467), (637, 32201919), (819, 25045937), (1131, 18136713), (1421, 14435343), (1827, 11227489), (1911, 10733973), (2639, 7772877), (3393, 6045571), (4263, 4811781), (5733, 3577991), (7917, 2590959), (12789, 1603927), (18473, 1110411), (23751, 863653), (55419, 370137), (123379, 166257)]