31561348

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2797}}^1$

素因数の和:2852

約数の個数: 48

約数和(自身を含む): 70196224

約数和(自身を除く): 38634876

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 2797, 2821, 5594, 5642, 11188, 11284, 19579, 36361, 39158, 72722, 78316, 86707, 145444, 173414, 254527, 346828, 509054, 606949, 1018108, 1127191, 1213898, 2254382, 2427796, 4508764, 7890337, 15780674, 31561348]

約数ペア:

[(1, 31561348), (2, 15780674), (4, 7890337), (7, 4508764), (13, 2427796), (14, 2254382), (26, 1213898), (28, 1127191), (31, 1018108), (52, 606949), (62, 509054), (91, 346828), (124, 254527), (182, 173414), (217, 145444), (364, 86707), (403, 78316), (434, 72722), (806, 39158), (868, 36361), (1612, 19579), (2797, 11284), (2821, 11188), (5594, 5642)]