21282456

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68213}}^1$

素因数の和:68235

約数の個数: 32

約数和(自身を含む): 57299760

約数和(自身を除く): 36017304

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68213, 136426, 204639, 272852, 409278, 545704, 818556, 886769, 1637112, 1773538, 2660307, 3547076, 5320614, 7094152, 10641228, 21282456]

約数ペア:

[(1, 21282456), (2, 10641228), (3, 7094152), (4, 5320614), (6, 3547076), (8, 2660307), (12, 1773538), (13, 1637112), (24, 886769), (26, 818556), (39, 545704), (52, 409278), (78, 272852), (104, 204639), (156, 136426), (312, 68213)]