21317212

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{599}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 23841188

約数列:

[1, 2, 4, 7, 14, 28, 31, 41, 62, 82, 124, 164, 217, 287, 434, 574, 599, 868, 1148, 1198, 1271, 2396, 2542, 4193, 5084, 8386, 8897, 16772, 17794, 18569, 24559, 35588, 37138, 49118, 74276, 98236, 129983, 171913, 259966, 343826, 519932, 687652, 761329, 1522658, 3045316, 5329303, 10658606, 21317212]

約数ペア:

[(1, 21317212), (2, 10658606), (4, 5329303), (7, 3045316), (14, 1522658), (28, 761329), (31, 687652), (41, 519932), (62, 343826), (82, 259966), (124, 171913), (164, 129983), (217, 98236), (287, 74276), (434, 49118), (574, 37138), (599, 35588), (868, 24559), (1148, 18569), (1198, 17794), (1271, 16772), (2396, 8897), (2542, 8386), (4193, 5084)]