21333130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:248

約数の個数: 96

約数和(自身を含む): 51193296

約数和(自身を除く): 29860166

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 49, 65, 70, 85, 91, 98, 119, 130, 170, 182, 197, 221, 238, 245, 394, 442, 455, 490, 595, 637, 833, 910, 985, 1105, 1190, 1274, 1379, 1547, 1666, 1970, 2210, 2561, 2758, 3094, 3185, 3349, 4165, 5122, 6370, 6698, 6895, 7735, 8330, 9653, 10829, 12805, 13790, 15470, 16745, 17927, 19306, 21658, 23443, 25610, 33490, 35854, 43537, 46886, 48265, 54145, 87074, 89635, 96530, 108290, 117215, 125489, 164101, 179270, 217685, 234430, 250978, 304759, 328202, 435370, 609518, 627445, 820505, 1254890, 1523795, 1641010, 2133313, 3047590, 4266626, 10666565, 21333130]

約数ペア:

[(1, 21333130), (2, 10666565), (5, 4266626), (7, 3047590), (10, 2133313), (13, 1641010), (14, 1523795), (17, 1254890), (26, 820505), (34, 627445), (35, 609518), (49, 435370), (65, 328202), (70, 304759), (85, 250978), (91, 234430), (98, 217685), (119, 179270), (130, 164101), (170, 125489), (182, 117215), (197, 108290), (221, 96530), (238, 89635), (245, 87074), (394, 54145), (442, 48265), (455, 46886), (490, 43537), (595, 35854), (637, 33490), (833, 25610), (910, 23443), (985, 21658), (1105, 19306), (1190, 17927), (1274, 16745), (1379, 15470), (1547, 13790), (1666, 12805), (1970, 10829), (2210, 9653), (2561, 8330), (2758, 7735), (3094, 6895), (3185, 6698), (3349, 6370), (4165, 5122)]