199901919

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43867}}^1$

素因数の和:43915

約数の個数: 24

約数和(自身を含む): 320060928

約数和(自身を除く): 120159009

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 43867, 131601, 307069, 921207, 1359877, 2149483, 4079631, 6448449, 9519139, 28557417, 66633973, 199901919]

約数ペア:

[(1, 199901919), (3, 66633973), (7, 28557417), (21, 9519139), (31, 6448449), (49, 4079631), (93, 2149483), (147, 1359877), (217, 921207), (651, 307069), (1519, 131601), (4557, 43867)]