21127740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:387

約数の個数: 96

約数和(自身を含む): 62920704

約数和(自身を除く): 41792964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 37, 60, 62, 74, 93, 111, 124, 148, 155, 185, 186, 222, 307, 310, 370, 372, 444, 465, 555, 614, 620, 740, 921, 930, 1110, 1147, 1228, 1535, 1842, 1860, 2220, 2294, 3070, 3441, 3684, 4588, 4605, 5735, 6140, 6882, 9210, 9517, 11359, 11470, 13764, 17205, 18420, 19034, 22718, 22940, 28551, 34077, 34410, 38068, 45436, 47585, 56795, 57102, 68154, 68820, 95170, 113590, 114204, 136308, 142755, 170385, 190340, 227180, 285510, 340770, 352129, 571020, 681540, 704258, 1056387, 1408516, 1760645, 2112774, 3521290, 4225548, 5281935, 7042580, 10563870, 21127740]

約数ペア:

[(1, 21127740), (2, 10563870), (3, 7042580), (4, 5281935), (5, 4225548), (6, 3521290), (10, 2112774), (12, 1760645), (15, 1408516), (20, 1056387), (30, 704258), (31, 681540), (37, 571020), (60, 352129), (62, 340770), (74, 285510), (93, 227180), (111, 190340), (124, 170385), (148, 142755), (155, 136308), (185, 114204), (186, 113590), (222, 95170), (307, 68820), (310, 68154), (370, 57102), (372, 56795), (444, 47585), (465, 45436), (555, 38068), (614, 34410), (620, 34077), (740, 28551), (921, 22940), (930, 22718), (1110, 19034), (1147, 18420), (1228, 17205), (1535, 13764), (1842, 11470), (1860, 11359), (2220, 9517), (2294, 9210), (3070, 6882), (3441, 6140), (3684, 5735), (4588, 4605)]