21408744

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{353}}^1$

素因数の和:407

約数の個数: 96

約数和(自身を含む): 64739520

約数和(自身を除く): 43330776

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 56, 57, 76, 84, 114, 133, 152, 168, 228, 266, 353, 361, 399, 456, 532, 706, 722, 798, 1059, 1064, 1083, 1412, 1444, 1596, 2118, 2166, 2471, 2527, 2824, 2888, 3192, 4236, 4332, 4942, 5054, 6707, 7413, 7581, 8472, 8664, 9884, 10108, 13414, 14826, 15162, 19768, 20121, 20216, 26828, 29652, 30324, 40242, 46949, 53656, 59304, 60648, 80484, 93898, 127433, 140847, 160968, 187796, 254866, 281694, 375592, 382299, 509732, 563388, 764598, 892031, 1019464, 1126776, 1529196, 1784062, 2676093, 3058392, 3568124, 5352186, 7136248, 10704372, 21408744]

約数ペア:

[(1, 21408744), (2, 10704372), (3, 7136248), (4, 5352186), (6, 3568124), (7, 3058392), (8, 2676093), (12, 1784062), (14, 1529196), (19, 1126776), (21, 1019464), (24, 892031), (28, 764598), (38, 563388), (42, 509732), (56, 382299), (57, 375592), (76, 281694), (84, 254866), (114, 187796), (133, 160968), (152, 140847), (168, 127433), (228, 93898), (266, 80484), (353, 60648), (361, 59304), (399, 53656), (456, 46949), (532, 40242), (706, 30324), (722, 29652), (798, 26828), (1059, 20216), (1064, 20121), (1083, 19768), (1412, 15162), (1444, 14826), (1596, 13414), (2118, 10108), (2166, 9884), (2471, 8664), (2527, 8472), (2824, 7581), (2888, 7413), (3192, 6707), (4236, 5054), (4332, 4942)]