19100775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 34069248

約数和(自身を除く): 14968473

約数列:

[1, 3, 5, 15, 17, 25, 51, 71, 75, 85, 211, 213, 255, 355, 425, 633, 1055, 1065, 1207, 1275, 1775, 3165, 3587, 3621, 5275, 5325, 6035, 10761, 14981, 15825, 17935, 18105, 30175, 44943, 53805, 74905, 89675, 90525, 224715, 254677, 269025, 374525, 764031, 1123575, 1273385, 3820155, 6366925, 19100775]

約数ペア:

[(1, 19100775), (3, 6366925), (5, 3820155), (15, 1273385), (17, 1123575), (25, 764031), (51, 374525), (71, 269025), (75, 254677), (85, 224715), (211, 90525), (213, 89675), (255, 74905), (355, 53805), (425, 44943), (633, 30175), (1055, 18105), (1065, 17935), (1207, 15825), (1275, 14981), (1775, 10761), (3165, 6035), (3587, 5325), (3621, 5275)]