18491085

素因数分解:

$3^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:134

約数の個数: 64

約数和(自身を含む): 35424000

約数和(自身を除く): 16932915

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 89, 95, 135, 171, 243, 267, 285, 405, 445, 513, 729, 801, 855, 1215, 1335, 1539, 1691, 2187, 2403, 2565, 3645, 4005, 4617, 5073, 7209, 7695, 8455, 10935, 12015, 13851, 15219, 21627, 23085, 25365, 36045, 41553, 45657, 64881, 69255, 76095, 108135, 136971, 194643, 207765, 228285, 324405, 410913, 684855, 973215, 1232739, 2054565, 3698217, 6163695, 18491085]

約数ペア:

[(1, 18491085), (3, 6163695), (5, 3698217), (9, 2054565), (15, 1232739), (19, 973215), (27, 684855), (45, 410913), (57, 324405), (81, 228285), (89, 207765), (95, 194643), (135, 136971), (171, 108135), (243, 76095), (267, 69255), (285, 64881), (405, 45657), (445, 41553), (513, 36045), (729, 25365), (801, 23085), (855, 21627), (1215, 15219), (1335, 13851), (1539, 12015), (1691, 10935), (2187, 8455), (2403, 7695), (2565, 7209), (3645, 5073), (4005, 4617)]