21015570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:579

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 33105390

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 89, 102, 170, 178, 255, 267, 445, 463, 510, 534, 890, 926, 1335, 1389, 1513, 2315, 2670, 2778, 3026, 4539, 4630, 6945, 7565, 7871, 9078, 13890, 15130, 15742, 22695, 23613, 39355, 41207, 45390, 47226, 78710, 82414, 118065, 123621, 206035, 236130, 247242, 412070, 618105, 700519, 1236210, 1401038, 2101557, 3502595, 4203114, 7005190, 10507785, 21015570]

約数ペア:

[(1, 21015570), (2, 10507785), (3, 7005190), (5, 4203114), (6, 3502595), (10, 2101557), (15, 1401038), (17, 1236210), (30, 700519), (34, 618105), (51, 412070), (85, 247242), (89, 236130), (102, 206035), (170, 123621), (178, 118065), (255, 82414), (267, 78710), (445, 47226), (463, 45390), (510, 41207), (534, 39355), (890, 23613), (926, 22695), (1335, 15742), (1389, 15130), (1513, 13890), (2315, 9078), (2670, 7871), (2778, 7565), (3026, 6945), (4539, 4630)]