20161958466

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1\times {\mathrm{8447}}^1$

素因数の和:8967

約数の個数: 64

約数和(自身を含む): 44144787456

約数和(自身を除く): 23982828990

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 431, 862, 923, 1293, 1846, 2586, 2769, 5538, 5603, 8447, 11206, 16809, 16894, 25341, 30601, 33618, 50682, 61202, 91803, 109811, 183606, 219622, 329433, 397813, 599737, 658866, 795626, 1193439, 1199474, 1799211, 2386878, 3598422, 3640657, 7281314, 7796581, 10921971, 15593162, 21843942, 23389743, 46779486, 47328541, 94657082, 141985623, 258486647, 283971246, 516973294, 775459941, 1550919882, 3360326411, 6720652822, 10080979233, 20161958466]

約数ペア:

[(1, 20161958466), (2, 10080979233), (3, 6720652822), (6, 3360326411), (13, 1550919882), (26, 775459941), (39, 516973294), (71, 283971246), (78, 258486647), (142, 141985623), (213, 94657082), (426, 47328541), (431, 46779486), (862, 23389743), (923, 21843942), (1293, 15593162), (1846, 10921971), (2586, 7796581), (2769, 7281314), (5538, 3640657), (5603, 3598422), (8447, 2386878), (11206, 1799211), (16809, 1199474), (16894, 1193439), (25341, 795626), (30601, 658866), (33618, 599737), (50682, 397813), (61202, 329433), (91803, 219622), (109811, 183606)]