21795396

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{367}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 59907456

約数和(自身を除く): 38112060

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 101, 147, 196, 202, 294, 303, 367, 404, 588, 606, 707, 734, 1101, 1212, 1414, 1468, 2121, 2202, 2569, 2828, 4242, 4404, 4949, 5138, 7707, 8484, 9898, 10276, 14847, 15414, 17983, 19796, 29694, 30828, 35966, 37067, 53949, 59388, 71932, 74134, 107898, 111201, 148268, 215796, 222402, 259469, 444804, 518938, 778407, 1037876, 1556814, 1816283, 3113628, 3632566, 5448849, 7265132, 10897698, 21795396]

約数ペア:

[(1, 21795396), (2, 10897698), (3, 7265132), (4, 5448849), (6, 3632566), (7, 3113628), (12, 1816283), (14, 1556814), (21, 1037876), (28, 778407), (42, 518938), (49, 444804), (84, 259469), (98, 222402), (101, 215796), (147, 148268), (196, 111201), (202, 107898), (294, 74134), (303, 71932), (367, 59388), (404, 53949), (588, 37067), (606, 35966), (707, 30828), (734, 29694), (1101, 19796), (1212, 17983), (1414, 15414), (1468, 14847), (2121, 10276), (2202, 9898), (2569, 8484), (2828, 7707), (4242, 5138), (4404, 4949)]