19453568

素因数分解:

$2^7\times {\mathrm{19}}^2\times {\mathrm{421}}^1$

素因数の和:473

約数の個数: 48

約数和(自身を含む): 40999410

約数和(自身を除く): 21545842

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 361, 421, 608, 722, 842, 1216, 1444, 1684, 2432, 2888, 3368, 5776, 6736, 7999, 11552, 13472, 15998, 23104, 26944, 31996, 46208, 53888, 63992, 127984, 151981, 255968, 303962, 511936, 607924, 1023872, 1215848, 2431696, 4863392, 9726784, 19453568]

約数ペア:

[(1, 19453568), (2, 9726784), (4, 4863392), (8, 2431696), (16, 1215848), (19, 1023872), (32, 607924), (38, 511936), (64, 303962), (76, 255968), (128, 151981), (152, 127984), (304, 63992), (361, 53888), (421, 46208), (608, 31996), (722, 26944), (842, 23104), (1216, 15998), (1444, 13472), (1684, 11552), (2432, 7999), (2888, 6736), (3368, 5776)]