18520956

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1$

素因数の和:651

約数の個数: 72

約数和(自身を含む): 50594544

約数和(自身を除く): 32073588

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 53, 68, 102, 106, 153, 159, 204, 212, 306, 318, 477, 571, 612, 636, 901, 954, 1142, 1713, 1802, 1908, 2284, 2703, 3426, 3604, 5139, 5406, 6852, 8109, 9707, 10278, 10812, 16218, 19414, 20556, 29121, 30263, 32436, 38828, 58242, 60526, 87363, 90789, 116484, 121052, 174726, 181578, 272367, 349452, 363156, 514471, 544734, 1028942, 1089468, 1543413, 2057884, 3086826, 4630239, 6173652, 9260478, 18520956]

約数ペア:

[(1, 18520956), (2, 9260478), (3, 6173652), (4, 4630239), (6, 3086826), (9, 2057884), (12, 1543413), (17, 1089468), (18, 1028942), (34, 544734), (36, 514471), (51, 363156), (53, 349452), (68, 272367), (102, 181578), (106, 174726), (153, 121052), (159, 116484), (204, 90789), (212, 87363), (306, 60526), (318, 58242), (477, 38828), (571, 32436), (612, 30263), (636, 29121), (901, 20556), (954, 19414), (1142, 16218), (1713, 10812), (1802, 10278), (1908, 9707), (2284, 8109), (2703, 6852), (3426, 5406), (3604, 5139)]