21508775540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{8513}}^1\times {\mathrm{18047}}^1$

素因数の和:26576

約数の個数: 48

約数和(自身を含む): 51629985792

約数和(自身を除く): 30121210252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 8513, 17026, 18047, 34052, 36094, 42565, 59591, 72188, 85130, 90235, 119182, 126329, 170260, 180470, 238364, 252658, 297955, 360940, 505316, 595910, 631645, 1191820, 1263290, 2526580, 153634111, 307268222, 614536444, 768170555, 1075438777, 1536341110, 2150877554, 3072682220, 4301755108, 5377193885, 10754387770, 21508775540]

約数ペア:

[(1, 21508775540), (2, 10754387770), (4, 5377193885), (5, 4301755108), (7, 3072682220), (10, 2150877554), (14, 1536341110), (20, 1075438777), (28, 768170555), (35, 614536444), (70, 307268222), (140, 153634111), (8513, 2526580), (17026, 1263290), (18047, 1191820), (34052, 631645), (36094, 595910), (42565, 505316), (59591, 360940), (72188, 297955), (85130, 252658), (90235, 238364), (119182, 180470), (126329, 170260)]