19790001

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:216

約数の個数: 80

約数和(自身を含む): 39029760

約数和(自身を除く): 19239759

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 81, 99, 133, 167, 171, 189, 209, 231, 297, 399, 501, 513, 567, 627, 693, 891, 1169, 1197, 1463, 1503, 1539, 1837, 1881, 2079, 3173, 3507, 3591, 4389, 4509, 5511, 5643, 6237, 9519, 10521, 10773, 12859, 13167, 13527, 16533, 16929, 22211, 28557, 31563, 34903, 38577, 39501, 49599, 66633, 85671, 94689, 104709, 115731, 118503, 148797, 199899, 244321, 257013, 314127, 347193, 599697, 732963, 942381, 1041579, 1799091, 2198889, 2827143, 6596667, 19790001]

約数ペア:

[(1, 19790001), (3, 6596667), (7, 2827143), (9, 2198889), (11, 1799091), (19, 1041579), (21, 942381), (27, 732963), (33, 599697), (57, 347193), (63, 314127), (77, 257013), (81, 244321), (99, 199899), (133, 148797), (167, 118503), (171, 115731), (189, 104709), (209, 94689), (231, 85671), (297, 66633), (399, 49599), (501, 39501), (513, 38577), (567, 34903), (627, 31563), (693, 28557), (891, 22211), (1169, 16929), (1197, 16533), (1463, 13527), (1503, 13167), (1539, 12859), (1837, 10773), (1881, 10521), (2079, 9519), (3173, 6237), (3507, 5643), (3591, 5511), (4389, 4509)]