641698393521

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1\times {\mathrm{620029}}^1$

素因数の和:620389

約数の個数: 32

約数和(自身を含む): 917445990400

約数和(自身を除く): 275747596879

約数列:

[1, 3, 19, 57, 67, 201, 271, 813, 1273, 3819, 5149, 15447, 18157, 54471, 344983, 620029, 1034949, 1860087, 11780551, 35341653, 41541943, 124625829, 168027859, 504083577, 789296917, 2367890751, 3192529321, 9577587963, 11257866553, 33773599659, 213899464507, 641698393521]

約数ペア:

[(1, 641698393521), (3, 213899464507), (19, 33773599659), (57, 11257866553), (67, 9577587963), (201, 3192529321), (271, 2367890751), (813, 789296917), (1273, 504083577), (3819, 168027859), (5149, 124625829), (15447, 41541943), (18157, 35341653), (54471, 11780551), (344983, 1860087), (620029, 1034949)]