21906439848

素因数分解:

$2^3\times 3^3\times {\mathrm{157}}^1\times {\mathrm{645979}}^1$

素因数の和:646151

約数の個数: 64

約数和(自身を含む): 61238904000

約数和(自身を除く): 39332464152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 157, 216, 314, 471, 628, 942, 1256, 1413, 1884, 2826, 3768, 4239, 5652, 8478, 11304, 16956, 33912, 645979, 1291958, 1937937, 2583916, 3875874, 5167832, 5813811, 7751748, 11627622, 15503496, 17441433, 23255244, 34882866, 46510488, 69765732, 101418703, 139531464, 202837406, 304256109, 405674812, 608512218, 811349624, 912768327, 1217024436, 1825536654, 2434048872, 2738304981, 3651073308, 5476609962, 7302146616, 10953219924, 21906439848]

約数ペア:

[(1, 21906439848), (2, 10953219924), (3, 7302146616), (4, 5476609962), (6, 3651073308), (8, 2738304981), (9, 2434048872), (12, 1825536654), (18, 1217024436), (24, 912768327), (27, 811349624), (36, 608512218), (54, 405674812), (72, 304256109), (108, 202837406), (157, 139531464), (216, 101418703), (314, 69765732), (471, 46510488), (628, 34882866), (942, 23255244), (1256, 17441433), (1413, 15503496), (1884, 11627622), (2826, 7751748), (3768, 5813811), (4239, 5167832), (5652, 3875874), (8478, 2583916), (11304, 1937937), (16956, 1291958), (33912, 645979)]