21938950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{353}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 45037296

約数和(自身を除く): 23098346

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 113, 226, 275, 353, 550, 565, 706, 1130, 1243, 1765, 2486, 2825, 3530, 3883, 5650, 6215, 7766, 8825, 12430, 17650, 19415, 31075, 38830, 39889, 62150, 79778, 97075, 194150, 199445, 398890, 438779, 877558, 997225, 1994450, 2193895, 4387790, 10969475, 21938950]

約数ペア:

[(1, 21938950), (2, 10969475), (5, 4387790), (10, 2193895), (11, 1994450), (22, 997225), (25, 877558), (50, 438779), (55, 398890), (110, 199445), (113, 194150), (226, 97075), (275, 79778), (353, 62150), (550, 39889), (565, 38830), (706, 31075), (1130, 19415), (1243, 17650), (1765, 12430), (2486, 8825), (2825, 7766), (3530, 6215), (3883, 5650)]