21876075

素因数分解:

$3^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 43917328

約数和(自身を除く): 22041253

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 243, 277, 325, 351, 405, 585, 675, 831, 975, 1053, 1215, 1385, 1755, 2025, 2493, 2925, 3159, 3601, 4155, 5265, 6075, 6925, 7479, 8775, 10803, 12465, 15795, 18005, 20775, 22437, 26325, 32409, 37395, 54015, 62325, 67311, 78975, 90025, 97227, 112185, 162045, 186975, 270075, 291681, 336555, 486135, 560925, 810225, 875043, 1458405, 1682775, 2430675, 4375215, 7292025, 21876075]

約数ペア:

[(1, 21876075), (3, 7292025), (5, 4375215), (9, 2430675), (13, 1682775), (15, 1458405), (25, 875043), (27, 810225), (39, 560925), (45, 486135), (65, 336555), (75, 291681), (81, 270075), (117, 186975), (135, 162045), (195, 112185), (225, 97227), (243, 90025), (277, 78975), (325, 67311), (351, 62325), (405, 54015), (585, 37395), (675, 32409), (831, 26325), (975, 22437), (1053, 20775), (1215, 18005), (1385, 15795), (1755, 12465), (2025, 10803), (2493, 8775), (2925, 7479), (3159, 6925), (3601, 6075), (4155, 5265)]