16628493

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 27578880

約数和(自身を除く): 10950387

約数列:

[1, 3, 7, 21, 31, 41, 49, 89, 93, 123, 147, 217, 267, 287, 623, 651, 861, 1271, 1519, 1869, 2009, 2759, 3649, 3813, 4361, 4557, 6027, 8277, 8897, 10947, 13083, 19313, 25543, 26691, 57939, 62279, 76629, 113119, 135191, 178801, 186837, 339357, 405573, 536403, 791833, 2375499, 5542831, 16628493]

約数ペア:

[(1, 16628493), (3, 5542831), (7, 2375499), (21, 791833), (31, 536403), (41, 405573), (49, 339357), (89, 186837), (93, 178801), (123, 135191), (147, 113119), (217, 76629), (267, 62279), (287, 57939), (623, 26691), (651, 25543), (861, 19313), (1271, 13083), (1519, 10947), (1869, 8897), (2009, 8277), (2759, 6027), (3649, 4557), (3813, 4361)]