21521880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{313}}^1$

素因数の和:521

約数の個数: 96

約数和(自身を含む): 70536960

約数和(自身を除く): 49015080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 191, 313, 360, 382, 573, 626, 764, 939, 955, 1146, 1252, 1528, 1565, 1719, 1878, 1910, 2292, 2504, 2817, 2865, 3130, 3438, 3756, 3820, 4584, 4695, 5634, 5730, 6260, 6876, 7512, 7640, 8595, 9390, 11268, 11460, 12520, 13752, 14085, 17190, 18780, 22536, 22920, 28170, 34380, 37560, 56340, 59783, 68760, 112680, 119566, 179349, 239132, 298915, 358698, 478264, 538047, 597830, 717396, 896745, 1076094, 1195660, 1434792, 1793490, 2152188, 2391320, 2690235, 3586980, 4304376, 5380470, 7173960, 10760940, 21521880]

約数ペア:

[(1, 21521880), (2, 10760940), (3, 7173960), (4, 5380470), (5, 4304376), (6, 3586980), (8, 2690235), (9, 2391320), (10, 2152188), (12, 1793490), (15, 1434792), (18, 1195660), (20, 1076094), (24, 896745), (30, 717396), (36, 597830), (40, 538047), (45, 478264), (60, 358698), (72, 298915), (90, 239132), (120, 179349), (180, 119566), (191, 112680), (313, 68760), (360, 59783), (382, 56340), (573, 37560), (626, 34380), (764, 28170), (939, 22920), (955, 22536), (1146, 18780), (1252, 17190), (1528, 14085), (1565, 13752), (1719, 12520), (1878, 11460), (1910, 11268), (2292, 9390), (2504, 8595), (2817, 7640), (2865, 7512), (3130, 6876), (3438, 6260), (3756, 5730), (3820, 5634), (4584, 4695)]