21463312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5431}}^1$

素因数の和:5471

約数の個数: 40

約数和(自身を含む): 47149760

約数和(自身を除く): 25686448

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 5431, 10862, 21724, 43448, 70603, 86896, 103189, 141206, 206378, 282412, 412756, 564824, 825512, 1129648, 1341457, 1651024, 2682914, 5365828, 10731656, 21463312]

約数ペア:

[(1, 21463312), (2, 10731656), (4, 5365828), (8, 2682914), (13, 1651024), (16, 1341457), (19, 1129648), (26, 825512), (38, 564824), (52, 412756), (76, 282412), (104, 206378), (152, 141206), (208, 103189), (247, 86896), (304, 70603), (494, 43448), (988, 21724), (1976, 10862), (3952, 5431)]