21027240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4493}}^1$

素因数の和:4523

約数の個数: 96

約数和(自身を含む): 73611720

約数和(自身を除く): 52584480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4493, 4680, 8986, 13479, 17972, 22465, 26958, 35944, 40437, 44930, 53916, 58409, 67395, 80874, 89860, 107832, 116818, 134790, 161748, 175227, 179720, 202185, 233636, 269580, 292045, 323496, 350454, 404370, 467272, 525681, 539160, 584090, 700908, 808740, 876135, 1051362, 1168180, 1401816, 1617480, 1752270, 2102724, 2336360, 2628405, 3504540, 4205448, 5256810, 7009080, 10513620, 21027240]

約数ペア:

[(1, 21027240), (2, 10513620), (3, 7009080), (4, 5256810), (5, 4205448), (6, 3504540), (8, 2628405), (9, 2336360), (10, 2102724), (12, 1752270), (13, 1617480), (15, 1401816), (18, 1168180), (20, 1051362), (24, 876135), (26, 808740), (30, 700908), (36, 584090), (39, 539160), (40, 525681), (45, 467272), (52, 404370), (60, 350454), (65, 323496), (72, 292045), (78, 269580), (90, 233636), (104, 202185), (117, 179720), (120, 175227), (130, 161748), (156, 134790), (180, 116818), (195, 107832), (234, 89860), (260, 80874), (312, 67395), (360, 58409), (390, 53916), (468, 44930), (520, 40437), (585, 35944), (780, 26958), (936, 22465), (1170, 17972), (1560, 13479), (2340, 8986), (4493, 4680)]