19211175

素因数分解:

$3^4\times 5^2\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:254

約数の個数: 60

約数和(自身を含む): 36459720

約数和(自身を除く): 17248545

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 53, 75, 81, 135, 159, 179, 225, 265, 405, 477, 537, 675, 795, 895, 1325, 1431, 1611, 2025, 2385, 2685, 3975, 4293, 4475, 4833, 7155, 8055, 9487, 11925, 13425, 14499, 21465, 24165, 28461, 35775, 40275, 47435, 72495, 85383, 107325, 120825, 142305, 237175, 256149, 362475, 426915, 711525, 768447, 1280745, 2134575, 3842235, 6403725, 19211175]

約数ペア:

[(1, 19211175), (3, 6403725), (5, 3842235), (9, 2134575), (15, 1280745), (25, 768447), (27, 711525), (45, 426915), (53, 362475), (75, 256149), (81, 237175), (135, 142305), (159, 120825), (179, 107325), (225, 85383), (265, 72495), (405, 47435), (477, 40275), (537, 35775), (675, 28461), (795, 24165), (895, 21465), (1325, 14499), (1431, 13425), (1611, 11925), (2025, 9487), (2385, 8055), (2685, 7155), (3975, 4833), (4293, 4475)]