28155897

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{467}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 25757703

約数列:

[1, 3, 7, 9, 11, 21, 27, 29, 33, 63, 77, 87, 99, 189, 203, 231, 261, 297, 319, 467, 609, 693, 783, 957, 1401, 1827, 2079, 2233, 2871, 3269, 4203, 5137, 5481, 6699, 8613, 9807, 12609, 13543, 15411, 20097, 29421, 35959, 40629, 46233, 60291, 88263, 94801, 107877, 121887, 138699, 148973, 284403, 323631, 365661, 446919, 853209, 970893, 1042811, 1340757, 2559627, 3128433, 4022271, 9385299, 28155897]

約数ペア:

[(1, 28155897), (3, 9385299), (7, 4022271), (9, 3128433), (11, 2559627), (21, 1340757), (27, 1042811), (29, 970893), (33, 853209), (63, 446919), (77, 365661), (87, 323631), (99, 284403), (189, 148973), (203, 138699), (231, 121887), (261, 107877), (297, 94801), (319, 88263), (467, 60291), (609, 46233), (693, 40629), (783, 35959), (957, 29421), (1401, 20097), (1827, 15411), (2079, 13543), (2233, 12609), (2871, 9807), (3269, 8613), (4203, 6699), (5137, 5481)]