21338184

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{809}}^1$

素因数の和:982

約数の個数: 64

約数和(自身を含む): 61430400

約数和(自身を除く): 40092216

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 157, 168, 314, 471, 628, 809, 942, 1099, 1256, 1618, 1884, 2198, 2427, 3236, 3297, 3768, 4396, 4854, 5663, 6472, 6594, 8792, 9708, 11326, 13188, 16989, 19416, 22652, 26376, 33978, 45304, 67956, 127013, 135912, 254026, 381039, 508052, 762078, 889091, 1016104, 1524156, 1778182, 2667273, 3048312, 3556364, 5334546, 7112728, 10669092, 21338184]

約数ペア:

[(1, 21338184), (2, 10669092), (3, 7112728), (4, 5334546), (6, 3556364), (7, 3048312), (8, 2667273), (12, 1778182), (14, 1524156), (21, 1016104), (24, 889091), (28, 762078), (42, 508052), (56, 381039), (84, 254026), (157, 135912), (168, 127013), (314, 67956), (471, 45304), (628, 33978), (809, 26376), (942, 22652), (1099, 19416), (1256, 16989), (1618, 13188), (1884, 11326), (2198, 9708), (2427, 8792), (3236, 6594), (3297, 6472), (3768, 5663), (4396, 4854)]