1981202713

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{4139}}^1$

素因数の和:4285

約数の個数: 32

約数和(自身を含む): 2464128000

約数和(自身を除く): 482925287

約数列:

[1, 7, 19, 59, 61, 133, 413, 427, 1121, 1159, 3599, 4139, 7847, 8113, 25193, 28973, 68381, 78641, 244201, 252479, 478667, 550487, 1709407, 1767353, 4639819, 4797101, 14896261, 32478733, 33579707, 104273827, 283028959, 1981202713]

約数ペア:

[(1, 1981202713), (7, 283028959), (19, 104273827), (59, 33579707), (61, 32478733), (133, 14896261), (413, 4797101), (427, 4639819), (1121, 1767353), (1159, 1709407), (3599, 550487), (4139, 478667), (7847, 252479), (8113, 244201), (25193, 78641), (28973, 68381)]