647359371

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{1873}}^1$

素因数の和:2153

約数の個数: 40

約数和(自身を含む): 1028556144

約数和(自身を除く): 381196773

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 251, 459, 753, 1377, 1873, 2259, 4267, 5619, 6777, 12801, 16857, 20331, 31841, 38403, 50571, 95523, 115209, 151713, 286569, 345627, 470123, 859707, 1410369, 2579121, 4231107, 7992091, 12693321, 23976273, 38079963, 71928819, 215786457, 647359371]

約数ペア:

[(1, 647359371), (3, 215786457), (9, 71928819), (17, 38079963), (27, 23976273), (51, 12693321), (81, 7992091), (153, 4231107), (251, 2579121), (459, 1410369), (753, 859707), (1377, 470123), (1873, 345627), (2259, 286569), (4267, 151713), (5619, 115209), (6777, 95523), (12801, 50571), (16857, 38403), (20331, 31841)]