206848551

素因数分解:

$3^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{47}}^2$

素因数の和:138

約数の個数: 60

約数和(自身を含む): 354023992

約数和(自身を除く): 147175441

約数列:

[1, 3, 7, 13, 21, 39, 47, 49, 91, 141, 147, 273, 329, 343, 611, 637, 987, 1029, 1833, 1911, 2209, 2303, 2401, 4277, 4459, 6627, 6909, 7203, 12831, 13377, 15463, 16121, 28717, 29939, 31213, 46389, 48363, 86151, 89817, 93639, 108241, 112847, 201019, 209573, 324723, 338541, 603057, 628719, 757687, 1407133, 1467011, 2273061, 4221399, 4401033, 5303809, 9849931, 15911427, 29549793, 68949517, 206848551]

約数ペア:

[(1, 206848551), (3, 68949517), (7, 29549793), (13, 15911427), (21, 9849931), (39, 5303809), (47, 4401033), (49, 4221399), (91, 2273061), (141, 1467011), (147, 1407133), (273, 757687), (329, 628719), (343, 603057), (611, 338541), (637, 324723), (987, 209573), (1029, 201019), (1833, 112847), (1911, 108241), (2209, 93639), (2303, 89817), (2401, 86151), (4277, 48363), (4459, 46389), (6627, 31213), (6909, 29939), (7203, 28717), (12831, 16121), (13377, 15463)]