19916826

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 25702374

約数列:

[1, 2, 3, 6, 17, 19, 34, 38, 43, 51, 57, 86, 102, 114, 129, 239, 258, 323, 478, 646, 717, 731, 817, 969, 1434, 1462, 1634, 1938, 2193, 2451, 4063, 4386, 4541, 4902, 8126, 9082, 10277, 12189, 13623, 13889, 20554, 24378, 27246, 27778, 30831, 41667, 61662, 77197, 83334, 154394, 174709, 195263, 231591, 349418, 390526, 463182, 524127, 585789, 1048254, 1171578, 3319471, 6638942, 9958413, 19916826]

約数ペア:

[(1, 19916826), (2, 9958413), (3, 6638942), (6, 3319471), (17, 1171578), (19, 1048254), (34, 585789), (38, 524127), (43, 463182), (51, 390526), (57, 349418), (86, 231591), (102, 195263), (114, 174709), (129, 154394), (239, 83334), (258, 77197), (323, 61662), (478, 41667), (646, 30831), (717, 27778), (731, 27246), (817, 24378), (969, 20554), (1434, 13889), (1462, 13623), (1634, 12189), (1938, 10277), (2193, 9082), (2451, 8126), (4063, 4902), (4386, 4541)]