21761745

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2633}}^1$

素因数の和:2689

約数の個数: 32

約数和(自身を含む): 37929600

約数和(自身を除く): 16167855

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 285, 435, 551, 1653, 2633, 2755, 7899, 8265, 13165, 39495, 50027, 76357, 150081, 229071, 250135, 381785, 750405, 1145355, 1450783, 4352349, 7253915, 21761745]

約数ペア:

[(1, 21761745), (3, 7253915), (5, 4352349), (15, 1450783), (19, 1145355), (29, 750405), (57, 381785), (87, 250135), (95, 229071), (145, 150081), (285, 76357), (435, 50027), (551, 39495), (1653, 13165), (2633, 8265), (2755, 7899)]