21071520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14633}}^1$

素因数の和:14654

約数の個数: 72

約数和(自身を含む): 71911476

約数和(自身を除く): 50839956

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14633, 29266, 43899, 58532, 73165, 87798, 117064, 131697, 146330, 175596, 219495, 234128, 263394, 292660, 351192, 438990, 468256, 526788, 585320, 658485, 702384, 877980, 1053576, 1170640, 1316970, 1404768, 1755960, 2107152, 2341280, 2633940, 3511920, 4214304, 5267880, 7023840, 10535760, 21071520]

約数ペア:

[(1, 21071520), (2, 10535760), (3, 7023840), (4, 5267880), (5, 4214304), (6, 3511920), (8, 2633940), (9, 2341280), (10, 2107152), (12, 1755960), (15, 1404768), (16, 1316970), (18, 1170640), (20, 1053576), (24, 877980), (30, 702384), (32, 658485), (36, 585320), (40, 526788), (45, 468256), (48, 438990), (60, 351192), (72, 292660), (80, 263394), (90, 234128), (96, 219495), (120, 175596), (144, 146330), (160, 131697), (180, 117064), (240, 87798), (288, 73165), (360, 58532), (480, 43899), (720, 29266), (1440, 14633)]