21697832

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 46932480

約数和(自身を除く): 25234648

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 47, 52, 92, 94, 104, 184, 188, 193, 299, 376, 386, 598, 611, 772, 1081, 1196, 1222, 1544, 2162, 2392, 2444, 2509, 4324, 4439, 4888, 5018, 8648, 8878, 9071, 10036, 14053, 17756, 18142, 20072, 28106, 35512, 36284, 56212, 57707, 72568, 112424, 115414, 117923, 208633, 230828, 235846, 417266, 461656, 471692, 834532, 943384, 1669064, 2712229, 5424458, 10848916, 21697832]

約数ペア:

[(1, 21697832), (2, 10848916), (4, 5424458), (8, 2712229), (13, 1669064), (23, 943384), (26, 834532), (46, 471692), (47, 461656), (52, 417266), (92, 235846), (94, 230828), (104, 208633), (184, 117923), (188, 115414), (193, 112424), (299, 72568), (376, 57707), (386, 56212), (598, 36284), (611, 35512), (772, 28106), (1081, 20072), (1196, 18142), (1222, 17756), (1544, 14053), (2162, 10036), (2392, 9071), (2444, 8878), (2509, 8648), (4324, 5018), (4439, 4888)]