645193731

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10891}}^1$

素因数の和:10952

約数の個数: 48

約数和(自身を含む): 1112552448

約数和(自身を除く): 467358717

約数列:

[1, 3, 7, 13, 21, 31, 39, 49, 91, 93, 147, 217, 273, 403, 637, 651, 1209, 1519, 1911, 2821, 4557, 8463, 10891, 19747, 32673, 59241, 76237, 141583, 228711, 337621, 424749, 533659, 991081, 1012863, 1600977, 2363347, 2973243, 4389073, 6937567, 7090041, 13167219, 16543429, 20812701, 30723511, 49630287, 92170533, 215064577, 645193731]

約数ペア:

[(1, 645193731), (3, 215064577), (7, 92170533), (13, 49630287), (21, 30723511), (31, 20812701), (39, 16543429), (49, 13167219), (91, 7090041), (93, 6937567), (147, 4389073), (217, 2973243), (273, 2363347), (403, 1600977), (637, 1012863), (651, 991081), (1209, 533659), (1519, 424749), (1911, 337621), (2821, 228711), (4557, 141583), (8463, 76237), (10891, 59241), (19747, 32673)]