21890700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1871}}^1$

素因数の和:1904

約数の個数: 108

約数和(自身を含む): 73932768

約数和(自身を除く): 52042068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 30, 36, 39, 45, 50, 52, 60, 65, 75, 78, 90, 100, 117, 130, 150, 156, 180, 195, 225, 234, 260, 300, 325, 390, 450, 468, 585, 650, 780, 900, 975, 1170, 1300, 1871, 1950, 2340, 2925, 3742, 3900, 5613, 5850, 7484, 9355, 11226, 11700, 16839, 18710, 22452, 24323, 28065, 33678, 37420, 46775, 48646, 56130, 67356, 72969, 84195, 93550, 97292, 112260, 121615, 140325, 145938, 168390, 187100, 218907, 243230, 280650, 291876, 336780, 364845, 420975, 437814, 486460, 561300, 608075, 729690, 841950, 875628, 1094535, 1216150, 1459380, 1683900, 1824225, 2189070, 2432300, 3648450, 4378140, 5472675, 7296900, 10945350, 21890700]

約数ペア:

[(1, 21890700), (2, 10945350), (3, 7296900), (4, 5472675), (5, 4378140), (6, 3648450), (9, 2432300), (10, 2189070), (12, 1824225), (13, 1683900), (15, 1459380), (18, 1216150), (20, 1094535), (25, 875628), (26, 841950), (30, 729690), (36, 608075), (39, 561300), (45, 486460), (50, 437814), (52, 420975), (60, 364845), (65, 336780), (75, 291876), (78, 280650), (90, 243230), (100, 218907), (117, 187100), (130, 168390), (150, 145938), (156, 140325), (180, 121615), (195, 112260), (225, 97292), (234, 93550), (260, 84195), (300, 72969), (325, 67356), (390, 56130), (450, 48646), (468, 46775), (585, 37420), (650, 33678), (780, 28065), (900, 24323), (975, 22452), (1170, 18710), (1300, 16839), (1871, 11700), (1950, 11226), (2340, 9355), (2925, 7484), (3742, 5850), (3900, 5613)]