81831438

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6857}}^1$

素因数の和:6898

約数の個数: 64

約数和(自身を含む): 207385920

約数和(自身を除く): 125554482

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 102, 117, 153, 221, 234, 306, 351, 442, 459, 663, 702, 918, 1326, 1989, 3978, 5967, 6857, 11934, 13714, 20571, 41142, 61713, 89141, 116569, 123426, 178282, 185139, 233138, 267423, 349707, 370278, 534846, 699414, 802269, 1049121, 1515397, 1604538, 2098242, 2406807, 3030794, 3147363, 4546191, 4813614, 6294726, 9092382, 13638573, 27277146, 40915719, 81831438]

約数ペア:

[(1, 81831438), (2, 40915719), (3, 27277146), (6, 13638573), (9, 9092382), (13, 6294726), (17, 4813614), (18, 4546191), (26, 3147363), (27, 3030794), (34, 2406807), (39, 2098242), (51, 1604538), (54, 1515397), (78, 1049121), (102, 802269), (117, 699414), (153, 534846), (221, 370278), (234, 349707), (306, 267423), (351, 233138), (442, 185139), (459, 178282), (663, 123426), (702, 116569), (918, 89141), (1326, 61713), (1989, 41142), (3978, 20571), (5967, 13714), (6857, 11934)]