20898528

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:384

約数の個数: 96

約数和(自身を含む): 63431424

約数和(自身を除く): 42532896

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 137, 168, 224, 227, 274, 336, 411, 454, 548, 672, 681, 822, 908, 959, 1096, 1362, 1589, 1644, 1816, 1918, 2192, 2724, 2877, 3178, 3288, 3632, 3836, 4384, 4767, 5448, 5754, 6356, 6576, 7264, 7672, 9534, 10896, 11508, 12712, 13152, 15344, 19068, 21792, 23016, 25424, 30688, 31099, 38136, 46032, 50848, 62198, 76272, 92064, 93297, 124396, 152544, 186594, 217693, 248792, 373188, 435386, 497584, 653079, 746376, 870772, 995168, 1306158, 1492752, 1741544, 2612316, 2985504, 3483088, 5224632, 6966176, 10449264, 20898528]

約数ペア:

[(1, 20898528), (2, 10449264), (3, 6966176), (4, 5224632), (6, 3483088), (7, 2985504), (8, 2612316), (12, 1741544), (14, 1492752), (16, 1306158), (21, 995168), (24, 870772), (28, 746376), (32, 653079), (42, 497584), (48, 435386), (56, 373188), (84, 248792), (96, 217693), (112, 186594), (137, 152544), (168, 124396), (224, 93297), (227, 92064), (274, 76272), (336, 62198), (411, 50848), (454, 46032), (548, 38136), (672, 31099), (681, 30688), (822, 25424), (908, 23016), (959, 21792), (1096, 19068), (1362, 15344), (1589, 13152), (1644, 12712), (1816, 11508), (1918, 10896), (2192, 9534), (2724, 7672), (2877, 7264), (3178, 6576), (3288, 6356), (3632, 5754), (3836, 5448), (4384, 4767)]