21339352

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 44906400

約数和(自身を除く): 23567048

約数列:

[1, 2, 4, 8, 17, 34, 41, 43, 68, 82, 86, 89, 136, 164, 172, 178, 328, 344, 356, 697, 712, 731, 1394, 1462, 1513, 1763, 2788, 2924, 3026, 3526, 3649, 3827, 5576, 5848, 6052, 7052, 7298, 7654, 12104, 14104, 14596, 15308, 29192, 29971, 30616, 59942, 62033, 65059, 119884, 124066, 130118, 156907, 239768, 248132, 260236, 313814, 496264, 520472, 627628, 1255256, 2667419, 5334838, 10669676, 21339352]

約数ペア:

[(1, 21339352), (2, 10669676), (4, 5334838), (8, 2667419), (17, 1255256), (34, 627628), (41, 520472), (43, 496264), (68, 313814), (82, 260236), (86, 248132), (89, 239768), (136, 156907), (164, 130118), (172, 124066), (178, 119884), (328, 65059), (344, 62033), (356, 59942), (697, 30616), (712, 29971), (731, 29192), (1394, 15308), (1462, 14596), (1513, 14104), (1763, 12104), (2788, 7654), (2924, 7298), (3026, 7052), (3526, 6052), (3649, 5848), (3827, 5576)]