21789300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 70189952

約数和(自身を除く): 48400652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 37, 39, 50, 52, 60, 65, 74, 75, 78, 100, 111, 130, 148, 150, 151, 156, 185, 195, 222, 260, 300, 302, 325, 370, 390, 444, 453, 481, 555, 604, 650, 740, 755, 780, 906, 925, 962, 975, 1110, 1300, 1443, 1510, 1812, 1850, 1924, 1950, 1963, 2220, 2265, 2405, 2775, 2886, 3020, 3700, 3775, 3900, 3926, 4530, 4810, 5550, 5587, 5772, 5889, 7215, 7550, 7852, 9060, 9620, 9815, 11100, 11174, 11325, 11778, 12025, 14430, 15100, 16761, 19630, 22348, 22650, 23556, 24050, 27935, 28860, 29445, 33522, 36075, 39260, 45300, 48100, 49075, 55870, 58890, 67044, 72150, 72631, 83805, 98150, 111740, 117780, 139675, 144300, 145262, 147225, 167610, 196300, 217893, 279350, 290524, 294450, 335220, 363155, 419025, 435786, 558700, 588900, 726310, 838050, 871572, 1089465, 1452620, 1676100, 1815775, 2178930, 3631550, 4357860, 5447325, 7263100, 10894650, 21789300]

約数ペア:

[(1, 21789300), (2, 10894650), (3, 7263100), (4, 5447325), (5, 4357860), (6, 3631550), (10, 2178930), (12, 1815775), (13, 1676100), (15, 1452620), (20, 1089465), (25, 871572), (26, 838050), (30, 726310), (37, 588900), (39, 558700), (50, 435786), (52, 419025), (60, 363155), (65, 335220), (74, 294450), (75, 290524), (78, 279350), (100, 217893), (111, 196300), (130, 167610), (148, 147225), (150, 145262), (151, 144300), (156, 139675), (185, 117780), (195, 111740), (222, 98150), (260, 83805), (300, 72631), (302, 72150), (325, 67044), (370, 58890), (390, 55870), (444, 49075), (453, 48100), (481, 45300), (555, 39260), (604, 36075), (650, 33522), (740, 29445), (755, 28860), (780, 27935), (906, 24050), (925, 23556), (962, 22650), (975, 22348), (1110, 19630), (1300, 16761), (1443, 15100), (1510, 14430), (1812, 12025), (1850, 11778), (1924, 11325), (1950, 11174), (1963, 11100), (2220, 9815), (2265, 9620), (2405, 9060), (2775, 7852), (2886, 7550), (3020, 7215), (3700, 5889), (3775, 5772), (3900, 5587), (3926, 5550), (4530, 4810)]