19807425

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 39693888

約数和(自身を除く): 19886463

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 53, 55, 75, 99, 151, 159, 165, 225, 265, 275, 453, 477, 495, 583, 755, 795, 825, 1325, 1359, 1661, 1749, 2265, 2385, 2475, 2915, 3775, 3975, 4983, 5247, 6795, 8003, 8305, 8745, 11325, 11925, 14575, 14949, 24009, 24915, 26235, 33975, 40015, 41525, 43725, 72027, 74745, 88033, 120045, 124575, 131175, 200075, 264099, 360135, 373725, 440165, 600225, 792297, 1320495, 1800675, 2200825, 3961485, 6602475, 19807425]

約数ペア:

[(1, 19807425), (3, 6602475), (5, 3961485), (9, 2200825), (11, 1800675), (15, 1320495), (25, 792297), (33, 600225), (45, 440165), (53, 373725), (55, 360135), (75, 264099), (99, 200075), (151, 131175), (159, 124575), (165, 120045), (225, 88033), (265, 74745), (275, 72027), (453, 43725), (477, 41525), (495, 40015), (583, 33975), (755, 26235), (795, 24915), (825, 24009), (1325, 14949), (1359, 14575), (1661, 11925), (1749, 11325), (2265, 8745), (2385, 8305), (2475, 8003), (2915, 6795), (3775, 5247), (3975, 4983)]