21373920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14843}}^1$

素因数の和:14864

約数の個数: 72

約数和(自身を含む): 72943416

約数和(自身を除く): 51569496

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, 14843, 29686, 44529, 59372, 74215, 89058, 118744, 133587, 148430, 178116, 222645, 237488, 267174, 296860, 356232, 445290, 474976, 534348, 593720, 667935, 712464, 890580, 1068696, 1187440, 1335870, 1424928, 1781160, 2137392, 2374880, 2671740, 3562320, 4274784, 5343480, 7124640, 10686960, 21373920]

約数ペア:

[(1, 21373920), (2, 10686960), (3, 7124640), (4, 5343480), (5, 4274784), (6, 3562320), (8, 2671740), (9, 2374880), (10, 2137392), (12, 1781160), (15, 1424928), (16, 1335870), (18, 1187440), (20, 1068696), (24, 890580), (30, 712464), (32, 667935), (36, 593720), (40, 534348), (45, 474976), (48, 445290), (60, 356232), (72, 296860), (80, 267174), (90, 237488), (96, 222645), (120, 178116), (144, 148430), (160, 133587), (180, 118744), (240, 89058), (288, 74215), (360, 59372), (480, 44529), (720, 29686), (1440, 14843)]