21871300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{337}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 52809120

約数和(自身を除く): 30937820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 59, 100, 110, 118, 220, 236, 275, 295, 337, 550, 590, 649, 674, 1100, 1180, 1298, 1348, 1475, 1685, 2596, 2950, 3245, 3370, 3707, 5900, 6490, 6740, 7414, 8425, 12980, 14828, 16225, 16850, 18535, 19883, 32450, 33700, 37070, 39766, 64900, 74140, 79532, 92675, 99415, 185350, 198830, 218713, 370700, 397660, 437426, 497075, 874852, 994150, 1093565, 1988300, 2187130, 4374260, 5467825, 10935650, 21871300]

約数ペア:

[(1, 21871300), (2, 10935650), (4, 5467825), (5, 4374260), (10, 2187130), (11, 1988300), (20, 1093565), (22, 994150), (25, 874852), (44, 497075), (50, 437426), (55, 397660), (59, 370700), (100, 218713), (110, 198830), (118, 185350), (220, 99415), (236, 92675), (275, 79532), (295, 74140), (337, 64900), (550, 39766), (590, 37070), (649, 33700), (674, 32450), (1100, 19883), (1180, 18535), (1298, 16850), (1348, 16225), (1475, 14828), (1685, 12980), (2596, 8425), (2950, 7414), (3245, 6740), (3370, 6490), (3707, 5900)]