21044673

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 13549887

約数列:

[1, 3, 9, 13, 39, 43, 47, 89, 117, 129, 141, 267, 387, 423, 559, 611, 801, 1157, 1677, 1833, 2021, 3471, 3827, 4183, 5031, 5499, 6063, 10413, 11481, 12549, 18189, 26273, 34443, 37647, 49751, 54379, 78819, 149253, 163137, 179869, 236457, 447759, 489411, 539607, 1618821, 2338297, 7014891, 21044673]

約数ペア:

[(1, 21044673), (3, 7014891), (9, 2338297), (13, 1618821), (39, 539607), (43, 489411), (47, 447759), (89, 236457), (117, 179869), (129, 163137), (141, 149253), (267, 78819), (387, 54379), (423, 49751), (559, 37647), (611, 34443), (801, 26273), (1157, 18189), (1677, 12549), (1833, 11481), (2021, 10413), (3471, 6063), (3827, 5499), (4183, 5031)]