21702870

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11483}}^1$

素因数の和:11506

約数の個数: 64

約数和(自身を含む): 66147840

約数和(自身を除く): 44444970

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11483, 22966, 34449, 57415, 68898, 80381, 103347, 114830, 160762, 172245, 206694, 241143, 310041, 344490, 401905, 482286, 516735, 620082, 723429, 803810, 1033470, 1205715, 1446858, 1550205, 2170287, 2411430, 3100410, 3617145, 4340574, 7234290, 10851435, 21702870]

約数ペア:

[(1, 21702870), (2, 10851435), (3, 7234290), (5, 4340574), (6, 3617145), (7, 3100410), (9, 2411430), (10, 2170287), (14, 1550205), (15, 1446858), (18, 1205715), (21, 1033470), (27, 803810), (30, 723429), (35, 620082), (42, 516735), (45, 482286), (54, 401905), (63, 344490), (70, 310041), (90, 241143), (105, 206694), (126, 172245), (135, 160762), (189, 114830), (210, 103347), (270, 80381), (315, 68898), (378, 57415), (630, 34449), (945, 22966), (1890, 11483)]