19493784

素因数分解:

$2^3\times 3^4\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 55539000

約数和(自身を除く): 36045216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 67, 72, 81, 108, 134, 162, 201, 216, 268, 324, 402, 449, 536, 603, 648, 804, 898, 1206, 1347, 1608, 1796, 1809, 2412, 2694, 3592, 3618, 4041, 4824, 5388, 5427, 7236, 8082, 10776, 10854, 12123, 14472, 16164, 21708, 24246, 30083, 32328, 36369, 43416, 48492, 60166, 72738, 90249, 96984, 120332, 145476, 180498, 240664, 270747, 290952, 360996, 541494, 721992, 812241, 1082988, 1624482, 2165976, 2436723, 3248964, 4873446, 6497928, 9746892, 19493784]

約数ペア:

[(1, 19493784), (2, 9746892), (3, 6497928), (4, 4873446), (6, 3248964), (8, 2436723), (9, 2165976), (12, 1624482), (18, 1082988), (24, 812241), (27, 721992), (36, 541494), (54, 360996), (67, 290952), (72, 270747), (81, 240664), (108, 180498), (134, 145476), (162, 120332), (201, 96984), (216, 90249), (268, 72738), (324, 60166), (402, 48492), (449, 43416), (536, 36369), (603, 32328), (648, 30083), (804, 24246), (898, 21708), (1206, 16164), (1347, 14472), (1608, 12123), (1796, 10854), (1809, 10776), (2412, 8082), (2694, 7236), (3592, 5427), (3618, 5388), (4041, 4824)]