21006840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5647}}^1$

素因数の和:5692

約数の個数: 64

約数和(自身を含む): 65064960

約数和(自身を除く): 44058120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5647, 11294, 16941, 22588, 28235, 33882, 45176, 56470, 67764, 84705, 112940, 135528, 169410, 175057, 225880, 338820, 350114, 525171, 677640, 700228, 875285, 1050342, 1400456, 1750570, 2100684, 2625855, 3501140, 4201368, 5251710, 7002280, 10503420, 21006840]

約数ペア:

[(1, 21006840), (2, 10503420), (3, 7002280), (4, 5251710), (5, 4201368), (6, 3501140), (8, 2625855), (10, 2100684), (12, 1750570), (15, 1400456), (20, 1050342), (24, 875285), (30, 700228), (31, 677640), (40, 525171), (60, 350114), (62, 338820), (93, 225880), (120, 175057), (124, 169410), (155, 135528), (186, 112940), (248, 84705), (310, 67764), (372, 56470), (465, 45176), (620, 33882), (744, 28235), (930, 22588), (1240, 16941), (1860, 11294), (3720, 5647)]