16531216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:176

約数の個数: 80

約数和(自身を含む): 37497600

約数和(自身を除く): 20966384

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 47, 52, 76, 89, 94, 104, 152, 178, 188, 208, 247, 304, 356, 376, 494, 611, 712, 752, 893, 988, 1157, 1222, 1424, 1691, 1786, 1976, 2314, 2444, 3382, 3572, 3952, 4183, 4628, 4888, 6764, 7144, 8366, 9256, 9776, 11609, 13528, 14288, 16732, 18512, 21983, 23218, 27056, 33464, 43966, 46436, 54379, 66928, 79477, 87932, 92872, 108758, 158954, 175864, 185744, 217516, 317908, 351728, 435032, 635816, 870064, 1033201, 1271632, 2066402, 4132804, 8265608, 16531216]

約数ペア:

[(1, 16531216), (2, 8265608), (4, 4132804), (8, 2066402), (13, 1271632), (16, 1033201), (19, 870064), (26, 635816), (38, 435032), (47, 351728), (52, 317908), (76, 217516), (89, 185744), (94, 175864), (104, 158954), (152, 108758), (178, 92872), (188, 87932), (208, 79477), (247, 66928), (304, 54379), (356, 46436), (376, 43966), (494, 33464), (611, 27056), (712, 23218), (752, 21983), (893, 18512), (988, 16732), (1157, 14288), (1222, 13528), (1424, 11609), (1691, 9776), (1786, 9256), (1976, 8366), (2314, 7144), (2444, 6764), (3382, 4888), (3572, 4628), (3952, 4183)]