21066480

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3251}}^1$

素因数の和:3276

約数の個数: 100

約数和(自身を含む): 73189512

約数和(自身を除く): 52123032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 3251, 6480, 6502, 9753, 13004, 16255, 19506, 26008, 29259, 32510, 39012, 48765, 52016, 58518, 65020, 78024, 87777, 97530, 117036, 130040, 146295, 156048, 175554, 195060, 234072, 260080, 263331, 292590, 351108, 390120, 438885, 468144, 526662, 585180, 702216, 780240, 877770, 1053324, 1170360, 1316655, 1404432, 1755540, 2106648, 2340720, 2633310, 3511080, 4213296, 5266620, 7022160, 10533240, 21066480]

約数ペア:

[(1, 21066480), (2, 10533240), (3, 7022160), (4, 5266620), (5, 4213296), (6, 3511080), (8, 2633310), (9, 2340720), (10, 2106648), (12, 1755540), (15, 1404432), (16, 1316655), (18, 1170360), (20, 1053324), (24, 877770), (27, 780240), (30, 702216), (36, 585180), (40, 526662), (45, 468144), (48, 438885), (54, 390120), (60, 351108), (72, 292590), (80, 263331), (81, 260080), (90, 234072), (108, 195060), (120, 175554), (135, 156048), (144, 146295), (162, 130040), (180, 117036), (216, 97530), (240, 87777), (270, 78024), (324, 65020), (360, 58518), (405, 52016), (432, 48765), (540, 39012), (648, 32510), (720, 29259), (810, 26008), (1080, 19506), (1296, 16255), (1620, 13004), (2160, 9753), (3240, 6502), (3251, 6480)]