21428738

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 35717760

約数和(自身を除く): 14289022

約数列:

[1, 2, 17, 29, 34, 58, 103, 206, 211, 422, 493, 986, 1751, 2987, 3502, 3587, 5974, 6119, 7174, 12238, 21733, 43466, 50779, 101558, 104023, 208046, 369461, 630257, 738922, 1260514, 10714369, 21428738]

約数ペア:

[(1, 21428738), (2, 10714369), (17, 1260514), (29, 738922), (34, 630257), (58, 369461), (103, 208046), (206, 104023), (211, 101558), (422, 50779), (493, 43466), (986, 21733), (1751, 12238), (2987, 7174), (3502, 6119), (3587, 5974)]