19738768

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1481}}^1$

素因数の和:1520

約数の個数: 60

約数和(自身を含む): 47136492

約数和(自身を除く): 27397724

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 98, 112, 119, 136, 196, 238, 272, 392, 476, 784, 833, 952, 1481, 1666, 1904, 2962, 3332, 5924, 6664, 10367, 11848, 13328, 20734, 23696, 25177, 41468, 50354, 72569, 82936, 100708, 145138, 165872, 176239, 201416, 290276, 352478, 402832, 580552, 704956, 1161104, 1233673, 1409912, 2467346, 2819824, 4934692, 9869384, 19738768]

約数ペア:

[(1, 19738768), (2, 9869384), (4, 4934692), (7, 2819824), (8, 2467346), (14, 1409912), (16, 1233673), (17, 1161104), (28, 704956), (34, 580552), (49, 402832), (56, 352478), (68, 290276), (98, 201416), (112, 176239), (119, 165872), (136, 145138), (196, 100708), (238, 82936), (272, 72569), (392, 50354), (476, 41468), (784, 25177), (833, 23696), (952, 20734), (1481, 13328), (1666, 11848), (1904, 10367), (2962, 6664), (3332, 5924)]