19950858

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 44680896

約数和(自身を除く): 24730038

約数列:

[1, 2, 3, 6, 9, 18, 67, 71, 134, 142, 201, 213, 233, 402, 426, 466, 603, 639, 699, 1206, 1278, 1398, 2097, 4194, 4757, 9514, 14271, 15611, 16543, 28542, 31222, 33086, 42813, 46833, 49629, 85626, 93666, 99258, 140499, 148887, 280998, 297774, 1108381, 2216762, 3325143, 6650286, 9975429, 19950858]

約数ペア:

[(1, 19950858), (2, 9975429), (3, 6650286), (6, 3325143), (9, 2216762), (18, 1108381), (67, 297774), (71, 280998), (134, 148887), (142, 140499), (201, 99258), (213, 93666), (233, 85626), (402, 49629), (426, 46833), (466, 42813), (603, 33086), (639, 31222), (699, 28542), (1206, 16543), (1278, 15611), (1398, 14271), (2097, 9514), (4194, 4757)]