21460569

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 32169984

約数和(自身を除く): 10709415

約数列:

[1, 3, 13, 39, 43, 67, 129, 191, 201, 559, 573, 871, 1677, 2483, 2613, 2881, 7449, 8213, 8643, 12797, 24639, 37453, 38391, 106769, 112359, 166361, 320307, 499083, 550271, 1650813, 7153523, 21460569]

約数ペア:

[(1, 21460569), (3, 7153523), (13, 1650813), (39, 550271), (43, 499083), (67, 320307), (129, 166361), (191, 112359), (201, 106769), (559, 38391), (573, 37453), (871, 24639), (1677, 12797), (2483, 8643), (2613, 8213), (2881, 7449)]