21115440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29327}}^1$

素因数の和:29346

約数の個数: 60

約数和(自身を含む): 70915104

約数和(自身を除く): 49799664

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29327, 58654, 87981, 117308, 146635, 175962, 234616, 263943, 293270, 351924, 439905, 469232, 527886, 586540, 703848, 879810, 1055772, 1173080, 1319715, 1407696, 1759620, 2111544, 2346160, 2639430, 3519240, 4223088, 5278860, 7038480, 10557720, 21115440]

約数ペア:

[(1, 21115440), (2, 10557720), (3, 7038480), (4, 5278860), (5, 4223088), (6, 3519240), (8, 2639430), (9, 2346160), (10, 2111544), (12, 1759620), (15, 1407696), (16, 1319715), (18, 1173080), (20, 1055772), (24, 879810), (30, 703848), (36, 586540), (40, 527886), (45, 469232), (48, 439905), (60, 351924), (72, 293270), (80, 263943), (90, 234616), (120, 175962), (144, 146635), (180, 117308), (240, 87981), (360, 58654), (720, 29327)]