21720762

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:288

約数の個数: 96

約数和(自身を含む): 58206720

約数和(自身を除く): 36485958

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 43, 57, 63, 86, 114, 126, 129, 133, 171, 211, 258, 266, 301, 342, 387, 399, 422, 602, 633, 774, 798, 817, 903, 1197, 1266, 1477, 1634, 1806, 1899, 2394, 2451, 2709, 2954, 3798, 4009, 4431, 4902, 5418, 5719, 7353, 8018, 8862, 9073, 11438, 12027, 13293, 14706, 17157, 18146, 24054, 26586, 27219, 28063, 34314, 36081, 51471, 54438, 56126, 63511, 72162, 81657, 84189, 102942, 127022, 163314, 168378, 172387, 190533, 252567, 344774, 381066, 505134, 517161, 571599, 1034322, 1143198, 1206709, 1551483, 2413418, 3102966, 3620127, 7240254, 10860381, 21720762]

約数ペア:

[(1, 21720762), (2, 10860381), (3, 7240254), (6, 3620127), (7, 3102966), (9, 2413418), (14, 1551483), (18, 1206709), (19, 1143198), (21, 1034322), (38, 571599), (42, 517161), (43, 505134), (57, 381066), (63, 344774), (86, 252567), (114, 190533), (126, 172387), (129, 168378), (133, 163314), (171, 127022), (211, 102942), (258, 84189), (266, 81657), (301, 72162), (342, 63511), (387, 56126), (399, 54438), (422, 51471), (602, 36081), (633, 34314), (774, 28063), (798, 27219), (817, 26586), (903, 24054), (1197, 18146), (1266, 17157), (1477, 14706), (1634, 13293), (1806, 12027), (1899, 11438), (2394, 9073), (2451, 8862), (2709, 8018), (2954, 7353), (3798, 5719), (4009, 5418), (4431, 4902)]