19365788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1153}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 40713120

約数和(自身を除く): 21347332

約数列:

[1, 2, 4, 13, 17, 19, 26, 34, 38, 52, 68, 76, 221, 247, 323, 442, 494, 646, 884, 988, 1153, 1292, 2306, 4199, 4612, 8398, 14989, 16796, 19601, 21907, 29978, 39202, 43814, 59956, 78404, 87628, 254813, 284791, 372419, 509626, 569582, 744838, 1019252, 1139164, 1489676, 4841447, 9682894, 19365788]

約数ペア:

[(1, 19365788), (2, 9682894), (4, 4841447), (13, 1489676), (17, 1139164), (19, 1019252), (26, 744838), (34, 569582), (38, 509626), (52, 372419), (68, 284791), (76, 254813), (221, 87628), (247, 78404), (323, 59956), (442, 43814), (494, 39202), (646, 29978), (884, 21907), (988, 19601), (1153, 16796), (1292, 14989), (2306, 8398), (4199, 4612)]