19910538

素因数分解:

$2^1\times 3^2\times {\mathrm{83}}^1\times {\mathrm{13327}}^1$

素因数の和:13418

約数の個数: 24

約数和(自身を含む): 43662528

約数和(自身を除く): 23751990

約数列:

[1, 2, 3, 6, 9, 18, 83, 166, 249, 498, 747, 1494, 13327, 26654, 39981, 79962, 119943, 239886, 1106141, 2212282, 3318423, 6636846, 9955269, 19910538]

約数ペア:

[(1, 19910538), (2, 9955269), (3, 6636846), (6, 3318423), (9, 2212282), (18, 1106141), (83, 239886), (166, 119943), (249, 79962), (498, 39981), (747, 26654), (1494, 13327)]