19383975

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^2$

素因数の和:126

約数の個数: 72

約数和(自身を含む): 39181520

約数和(自身を除く): 19797545

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 47, 65, 75, 117, 135, 141, 195, 225, 235, 325, 351, 423, 585, 611, 675, 705, 975, 1175, 1269, 1755, 1833, 2115, 2209, 2925, 3055, 3525, 5499, 6345, 6627, 8775, 9165, 10575, 11045, 15275, 16497, 19881, 27495, 28717, 31725, 33135, 45825, 55225, 59643, 82485, 86151, 99405, 137475, 143585, 165675, 258453, 298215, 412425, 430755, 497025, 717925, 775359, 1292265, 1491075, 2153775, 3876795, 6461325, 19383975]

約数ペア:

[(1, 19383975), (3, 6461325), (5, 3876795), (9, 2153775), (13, 1491075), (15, 1292265), (25, 775359), (27, 717925), (39, 497025), (45, 430755), (47, 412425), (65, 298215), (75, 258453), (117, 165675), (135, 143585), (141, 137475), (195, 99405), (225, 86151), (235, 82485), (325, 59643), (351, 55225), (423, 45825), (585, 33135), (611, 31725), (675, 28717), (705, 27495), (975, 19881), (1175, 16497), (1269, 15275), (1755, 11045), (1833, 10575), (2115, 9165), (2209, 8775), (2925, 6627), (3055, 6345), (3525, 5499)]