20973438

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 28274562

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 59, 87, 118, 174, 177, 227, 261, 354, 454, 522, 531, 681, 783, 1062, 1362, 1566, 1593, 1711, 2043, 3186, 3422, 4086, 5133, 6129, 6583, 10266, 12258, 13166, 13393, 15399, 19749, 26786, 30798, 39498, 40179, 46197, 59247, 80358, 92394, 118494, 120537, 177741, 241074, 355482, 361611, 388397, 723222, 776794, 1165191, 2330382, 3495573, 6991146, 10486719, 20973438]

約数ペア:

[(1, 20973438), (2, 10486719), (3, 6991146), (6, 3495573), (9, 2330382), (18, 1165191), (27, 776794), (29, 723222), (54, 388397), (58, 361611), (59, 355482), (87, 241074), (118, 177741), (174, 120537), (177, 118494), (227, 92394), (261, 80358), (354, 59247), (454, 46197), (522, 40179), (531, 39498), (681, 30798), (783, 26786), (1062, 19749), (1362, 15399), (1566, 13393), (1593, 13166), (1711, 12258), (2043, 10266), (3186, 6583), (3422, 6129), (4086, 5133)]