55321749

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 97219200

約数和(自身を除く): 41897451

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 113, 133, 171, 339, 399, 409, 791, 1017, 1197, 1227, 2147, 2373, 2863, 3681, 6441, 7119, 7771, 8589, 15029, 19323, 23313, 25767, 45087, 46217, 54397, 69939, 135261, 138651, 163191, 323519, 415953, 489573, 878123, 970557, 2634369, 2911671, 6146861, 7903107, 18440583, 55321749]

約数ペア:

[(1, 55321749), (3, 18440583), (7, 7903107), (9, 6146861), (19, 2911671), (21, 2634369), (57, 970557), (63, 878123), (113, 489573), (133, 415953), (171, 323519), (339, 163191), (399, 138651), (409, 135261), (791, 69939), (1017, 54397), (1197, 46217), (1227, 45087), (2147, 25767), (2373, 23313), (2863, 19323), (3681, 15029), (6441, 8589), (7119, 7771)]