21178290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{14407}}^1$

素因数の和:14431

約数の個数: 48

約数和(自身を含む): 59130432

約数和(自身を除く): 37952142

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 14407, 28814, 43221, 72035, 86442, 100849, 144070, 201698, 216105, 302547, 432210, 504245, 605094, 705943, 1008490, 1411886, 1512735, 2117829, 3025470, 3529715, 4235658, 7059430, 10589145, 21178290]

約数ペア:

[(1, 21178290), (2, 10589145), (3, 7059430), (5, 4235658), (6, 3529715), (7, 3025470), (10, 2117829), (14, 1512735), (15, 1411886), (21, 1008490), (30, 705943), (35, 605094), (42, 504245), (49, 432210), (70, 302547), (98, 216105), (105, 201698), (147, 144070), (210, 100849), (245, 86442), (294, 72035), (490, 43221), (735, 28814), (1470, 14407)]