28363419

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 51118080

約数和(自身を除く): 22754661

約数列:

[1, 3, 7, 9, 21, 27, 31, 47, 63, 93, 103, 141, 189, 217, 279, 309, 329, 423, 651, 721, 837, 927, 987, 1269, 1457, 1953, 2163, 2781, 2961, 3193, 4371, 4841, 5859, 6489, 8883, 9579, 10199, 13113, 14523, 19467, 22351, 28737, 30597, 33887, 39339, 43569, 67053, 86211, 91791, 101661, 130707, 150071, 201159, 275373, 304983, 450213, 603477, 914949, 1050497, 1350639, 3151491, 4051917, 9454473, 28363419]

約数ペア:

[(1, 28363419), (3, 9454473), (7, 4051917), (9, 3151491), (21, 1350639), (27, 1050497), (31, 914949), (47, 603477), (63, 450213), (93, 304983), (103, 275373), (141, 201159), (189, 150071), (217, 130707), (279, 101661), (309, 91791), (329, 86211), (423, 67053), (651, 43569), (721, 39339), (837, 33887), (927, 30597), (987, 28737), (1269, 22351), (1457, 19467), (1953, 14523), (2163, 13113), (2781, 10199), (2961, 9579), (3193, 8883), (4371, 6489), (4841, 5859)]