21995168

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1429}}^1$

素因数の和:1489

約数の個数: 48

約数和(自身を含む): 47927880

約数和(自身を除く): 25932712

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 74, 104, 148, 208, 296, 416, 481, 592, 962, 1184, 1429, 1924, 2858, 3848, 5716, 7696, 11432, 15392, 18577, 22864, 37154, 45728, 52873, 74308, 105746, 148616, 211492, 297232, 422984, 594464, 687349, 845968, 1374698, 1691936, 2749396, 5498792, 10997584, 21995168]

約数ペア:

[(1, 21995168), (2, 10997584), (4, 5498792), (8, 2749396), (13, 1691936), (16, 1374698), (26, 845968), (32, 687349), (37, 594464), (52, 422984), (74, 297232), (104, 211492), (148, 148616), (208, 105746), (296, 74308), (416, 52873), (481, 45728), (592, 37154), (962, 22864), (1184, 18577), (1429, 15392), (1924, 11432), (2858, 7696), (3848, 5716)]