21295860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12239}}^1$

素因数の和:12280

約数の個数: 48

約数和(自身を含む): 61689600

約数和(自身を除く): 40393740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12239, 24478, 36717, 48956, 61195, 73434, 122390, 146868, 183585, 244780, 354931, 367170, 709862, 734340, 1064793, 1419724, 1774655, 2129586, 3549310, 4259172, 5323965, 7098620, 10647930, 21295860]

約数ペア:

[(1, 21295860), (2, 10647930), (3, 7098620), (4, 5323965), (5, 4259172), (6, 3549310), (10, 2129586), (12, 1774655), (15, 1419724), (20, 1064793), (29, 734340), (30, 709862), (58, 367170), (60, 354931), (87, 244780), (116, 183585), (145, 146868), (174, 122390), (290, 73434), (348, 61195), (435, 48956), (580, 36717), (870, 24478), (1740, 12239)]