21975050

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 43872192

約数和(自身を除く): 21897142

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 103, 170, 206, 251, 425, 502, 515, 850, 1030, 1255, 1751, 2510, 2575, 3502, 4267, 5150, 6275, 8534, 8755, 12550, 17510, 21335, 25853, 42670, 43775, 51706, 87550, 106675, 129265, 213350, 258530, 439501, 646325, 879002, 1292650, 2197505, 4395010, 10987525, 21975050]

約数ペア:

[(1, 21975050), (2, 10987525), (5, 4395010), (10, 2197505), (17, 1292650), (25, 879002), (34, 646325), (50, 439501), (85, 258530), (103, 213350), (170, 129265), (206, 106675), (251, 87550), (425, 51706), (502, 43775), (515, 42670), (850, 25853), (1030, 21335), (1255, 17510), (1751, 12550), (2510, 8755), (2575, 8534), (3502, 6275), (4267, 5150)]