16821675

素因数分解:

$3^6\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:112

約数の個数: 84

約数和(自身を含む): 34154064

約数和(自身を除く): 17332389

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 71, 75, 81, 117, 135, 195, 213, 225, 243, 325, 351, 355, 405, 585, 639, 675, 729, 923, 975, 1053, 1065, 1215, 1755, 1775, 1917, 2025, 2769, 2925, 3159, 3195, 3645, 4615, 5265, 5325, 5751, 6075, 8307, 8775, 9477, 9585, 13845, 15795, 15975, 17253, 18225, 23075, 24921, 26325, 28755, 41535, 47385, 47925, 51759, 69225, 74763, 78975, 86265, 124605, 143775, 207675, 224289, 236925, 258795, 373815, 431325, 623025, 672867, 1121445, 1293975, 1869075, 3364335, 5607225, 16821675]

約数ペア:

[(1, 16821675), (3, 5607225), (5, 3364335), (9, 1869075), (13, 1293975), (15, 1121445), (25, 672867), (27, 623025), (39, 431325), (45, 373815), (65, 258795), (71, 236925), (75, 224289), (81, 207675), (117, 143775), (135, 124605), (195, 86265), (213, 78975), (225, 74763), (243, 69225), (325, 51759), (351, 47925), (355, 47385), (405, 41535), (585, 28755), (639, 26325), (675, 24921), (729, 23075), (923, 18225), (975, 17253), (1053, 15975), (1065, 15795), (1215, 13845), (1755, 9585), (1775, 9477), (1917, 8775), (2025, 8307), (2769, 6075), (2925, 5751), (3159, 5325), (3195, 5265), (3645, 4615)]