21299220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39443}}^1$

素因数の和:39461

約数の個数: 48

約数和(自身を含む): 66265920

約数和(自身を除く): 44966700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39443, 78886, 118329, 157772, 197215, 236658, 354987, 394430, 473316, 591645, 709974, 788860, 1064961, 1183290, 1419948, 1774935, 2129922, 2366580, 3549870, 4259844, 5324805, 7099740, 10649610, 21299220]

約数ペア:

[(1, 21299220), (2, 10649610), (3, 7099740), (4, 5324805), (5, 4259844), (6, 3549870), (9, 2366580), (10, 2129922), (12, 1774935), (15, 1419948), (18, 1183290), (20, 1064961), (27, 788860), (30, 709974), (36, 591645), (45, 473316), (54, 394430), (60, 354987), (90, 236658), (108, 197215), (135, 157772), (180, 118329), (270, 78886), (540, 39443)]