21246056

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 46403280

約数和(自身を除く): 25157224

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 61, 68, 104, 122, 136, 197, 221, 244, 394, 442, 488, 788, 793, 884, 1037, 1576, 1586, 1768, 2074, 2561, 3172, 3349, 4148, 5122, 6344, 6698, 8296, 10244, 12017, 13396, 13481, 20488, 24034, 26792, 26962, 43537, 48068, 53924, 87074, 96136, 107848, 156221, 174148, 204289, 312442, 348296, 408578, 624884, 817156, 1249768, 1634312, 2655757, 5311514, 10623028, 21246056]

約数ペア:

[(1, 21246056), (2, 10623028), (4, 5311514), (8, 2655757), (13, 1634312), (17, 1249768), (26, 817156), (34, 624884), (52, 408578), (61, 348296), (68, 312442), (104, 204289), (122, 174148), (136, 156221), (197, 107848), (221, 96136), (244, 87074), (394, 53924), (442, 48068), (488, 43537), (788, 26962), (793, 26792), (884, 24034), (1037, 20488), (1576, 13481), (1586, 13396), (1768, 12017), (2074, 10244), (2561, 8296), (3172, 6698), (3349, 6344), (4148, 5122)]