68785857

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2557}}^1$

素因数の和:2638

約数の個数: 36

約数和(自身を含む): 117519636

約数和(自身を除く): 48733779

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 1281, 2557, 2989, 3843, 7671, 8967, 17899, 23013, 26901, 53697, 125293, 155977, 161091, 375879, 467931, 1091839, 1127637, 1403793, 3275517, 7642873, 9826551, 22928619, 68785857]

約数ペア:

[(1, 68785857), (3, 22928619), (7, 9826551), (9, 7642873), (21, 3275517), (49, 1403793), (61, 1127637), (63, 1091839), (147, 467931), (183, 375879), (427, 161091), (441, 155977), (549, 125293), (1281, 53697), (2557, 26901), (2989, 23013), (3843, 17899), (7671, 8967)]