21197300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 50168664

約数和(自身を除く): 28971364

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 37, 50, 68, 74, 85, 100, 148, 170, 185, 337, 340, 370, 425, 629, 674, 740, 850, 925, 1258, 1348, 1685, 1700, 1850, 2516, 3145, 3370, 3700, 5729, 6290, 6740, 8425, 11458, 12469, 12580, 15725, 16850, 22916, 24938, 28645, 31450, 33700, 49876, 57290, 62345, 62900, 114580, 124690, 143225, 211973, 249380, 286450, 311725, 423946, 572900, 623450, 847892, 1059865, 1246900, 2119730, 4239460, 5299325, 10598650, 21197300]

約数ペア:

[(1, 21197300), (2, 10598650), (4, 5299325), (5, 4239460), (10, 2119730), (17, 1246900), (20, 1059865), (25, 847892), (34, 623450), (37, 572900), (50, 423946), (68, 311725), (74, 286450), (85, 249380), (100, 211973), (148, 143225), (170, 124690), (185, 114580), (337, 62900), (340, 62345), (370, 57290), (425, 49876), (629, 33700), (674, 31450), (740, 28645), (850, 24938), (925, 22916), (1258, 16850), (1348, 15725), (1685, 12580), (1700, 12469), (1850, 11458), (2516, 8425), (3145, 6740), (3370, 6290), (3700, 5729)]