21645180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6329}}^1$

素因数の和:6363

約数の個数: 72

約数和(自身を含む): 69123600

約数和(自身を除く): 47478420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6329, 12658, 18987, 25316, 31645, 37974, 56961, 63290, 75948, 94935, 113922, 120251, 126580, 189870, 227844, 240502, 284805, 360753, 379740, 481004, 569610, 601255, 721506, 1082259, 1139220, 1202510, 1443012, 1803765, 2164518, 2405020, 3607530, 4329036, 5411295, 7215060, 10822590, 21645180]

約数ペア:

[(1, 21645180), (2, 10822590), (3, 7215060), (4, 5411295), (5, 4329036), (6, 3607530), (9, 2405020), (10, 2164518), (12, 1803765), (15, 1443012), (18, 1202510), (19, 1139220), (20, 1082259), (30, 721506), (36, 601255), (38, 569610), (45, 481004), (57, 379740), (60, 360753), (76, 284805), (90, 240502), (95, 227844), (114, 189870), (171, 126580), (180, 120251), (190, 113922), (228, 94935), (285, 75948), (342, 63290), (380, 56961), (570, 37974), (684, 31645), (855, 25316), (1140, 18987), (1710, 12658), (3420, 6329)]