21840312

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{70001}}^1$

素因数の和:70023

約数の個数: 32

約数和(自身を含む): 58801680

約数和(自身を除く): 36961368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 70001, 140002, 210003, 280004, 420006, 560008, 840012, 910013, 1680024, 1820026, 2730039, 3640052, 5460078, 7280104, 10920156, 21840312]

約数ペア:

[(1, 21840312), (2, 10920156), (3, 7280104), (4, 5460078), (6, 3640052), (8, 2730039), (12, 1820026), (13, 1680024), (24, 910013), (26, 840012), (39, 560008), (52, 420006), (78, 280004), (104, 210003), (156, 140002), (312, 70001)]