21375152456

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{195043}}^1$

素因数の和:195178

約数の個数: 64

約数和(自身を含む): 48682982400

約数和(自身を除く): 27307829944

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 103, 133, 152, 206, 266, 412, 532, 721, 824, 1064, 1442, 1957, 2884, 3914, 5768, 7828, 13699, 15656, 27398, 54796, 109592, 195043, 390086, 780172, 1365301, 1560344, 2730602, 3705817, 5461204, 7411634, 10922408, 14823268, 20089429, 25940719, 29646536, 40178858, 51881438, 80357716, 103762876, 140626003, 160715432, 207525752, 281252006, 381699151, 562504012, 763398302, 1125008024, 1526796604, 2671894057, 3053593208, 5343788114, 10687576228, 21375152456]

約数ペア:

[(1, 21375152456), (2, 10687576228), (4, 5343788114), (7, 3053593208), (8, 2671894057), (14, 1526796604), (19, 1125008024), (28, 763398302), (38, 562504012), (56, 381699151), (76, 281252006), (103, 207525752), (133, 160715432), (152, 140626003), (206, 103762876), (266, 80357716), (412, 51881438), (532, 40178858), (721, 29646536), (824, 25940719), (1064, 20089429), (1442, 14823268), (1957, 10922408), (2884, 7411634), (3914, 5461204), (5768, 3705817), (7828, 2730602), (13699, 1560344), (15656, 1365301), (27398, 780172), (54796, 390086), (109592, 195043)]