21096950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:214

約数の個数: 72

約数和(自身を含む): 46648800

約数和(自身を除く): 25551850

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 79, 98, 109, 158, 175, 218, 245, 350, 395, 490, 545, 553, 763, 790, 1090, 1106, 1225, 1526, 1975, 2450, 2725, 2765, 3815, 3871, 3950, 5341, 5450, 5530, 7630, 7742, 8611, 10682, 13825, 17222, 19075, 19355, 26705, 27650, 38150, 38710, 43055, 53410, 60277, 86110, 96775, 120554, 133525, 193550, 215275, 267050, 301385, 421939, 430550, 602770, 843878, 1506925, 2109695, 3013850, 4219390, 10548475, 21096950]

約数ペア:

[(1, 21096950), (2, 10548475), (5, 4219390), (7, 3013850), (10, 2109695), (14, 1506925), (25, 843878), (35, 602770), (49, 430550), (50, 421939), (70, 301385), (79, 267050), (98, 215275), (109, 193550), (158, 133525), (175, 120554), (218, 96775), (245, 86110), (350, 60277), (395, 53410), (490, 43055), (545, 38710), (553, 38150), (763, 27650), (790, 26705), (1090, 19355), (1106, 19075), (1225, 17222), (1526, 13825), (1975, 10682), (2450, 8611), (2725, 7742), (2765, 7630), (3815, 5530), (3871, 5450), (3950, 5341)]