19942974

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 45090864

約数和(自身を除く): 25147890

約数列:

[1, 2, 3, 6, 9, 18, 41, 61, 82, 122, 123, 183, 246, 366, 369, 443, 549, 738, 886, 1098, 1329, 2501, 2658, 3987, 5002, 7503, 7974, 15006, 18163, 22509, 27023, 36326, 45018, 54046, 54489, 81069, 108978, 162138, 163467, 243207, 326934, 486414, 1107943, 2215886, 3323829, 6647658, 9971487, 19942974]

約数ペア:

[(1, 19942974), (2, 9971487), (3, 6647658), (6, 3323829), (9, 2215886), (18, 1107943), (41, 486414), (61, 326934), (82, 243207), (122, 163467), (123, 162138), (183, 108978), (246, 81069), (366, 54489), (369, 54046), (443, 45018), (549, 36326), (738, 27023), (886, 22509), (1098, 18163), (1329, 15006), (2501, 7974), (2658, 7503), (3987, 5002)]