21459240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5419}}^1$

素因数の和:5447

約数の個数: 96

約数和(自身を含む): 76096800

約数和(自身を除く): 54637560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5419, 10838, 16257, 21676, 27095, 32514, 43352, 48771, 54190, 59609, 65028, 81285, 97542, 108380, 119218, 130056, 162570, 178827, 195084, 216760, 238436, 243855, 298045, 325140, 357654, 390168, 476872, 487710, 536481, 596090, 650280, 715308, 894135, 975420, 1072962, 1192180, 1430616, 1788270, 1950840, 2145924, 2384360, 2682405, 3576540, 4291848, 5364810, 7153080, 10729620, 21459240]

約数ペア:

[(1, 21459240), (2, 10729620), (3, 7153080), (4, 5364810), (5, 4291848), (6, 3576540), (8, 2682405), (9, 2384360), (10, 2145924), (11, 1950840), (12, 1788270), (15, 1430616), (18, 1192180), (20, 1072962), (22, 975420), (24, 894135), (30, 715308), (33, 650280), (36, 596090), (40, 536481), (44, 487710), (45, 476872), (55, 390168), (60, 357654), (66, 325140), (72, 298045), (88, 243855), (90, 238436), (99, 216760), (110, 195084), (120, 178827), (132, 162570), (165, 130056), (180, 119218), (198, 108380), (220, 97542), (264, 81285), (330, 65028), (360, 59609), (396, 54190), (440, 48771), (495, 43352), (660, 32514), (792, 27095), (990, 21676), (1320, 16257), (1980, 10838), (3960, 5419)]