27896427

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 20487573

約数列:

[1, 3, 9, 13, 19, 27, 39, 47, 57, 89, 117, 141, 171, 247, 267, 351, 423, 513, 611, 741, 801, 893, 1157, 1269, 1691, 1833, 2223, 2403, 2679, 3471, 4183, 5073, 5499, 6669, 8037, 10413, 11609, 12549, 15219, 16497, 21983, 24111, 31239, 34827, 37647, 45657, 54379, 65949, 79477, 104481, 112941, 163137, 197847, 238431, 313443, 489411, 593541, 715293, 1033201, 1468233, 2145879, 3099603, 9298809, 27896427]

約数ペア:

[(1, 27896427), (3, 9298809), (9, 3099603), (13, 2145879), (19, 1468233), (27, 1033201), (39, 715293), (47, 593541), (57, 489411), (89, 313443), (117, 238431), (141, 197847), (171, 163137), (247, 112941), (267, 104481), (351, 79477), (423, 65949), (513, 54379), (611, 45657), (741, 37647), (801, 34827), (893, 31239), (1157, 24111), (1269, 21983), (1691, 16497), (1833, 15219), (2223, 12549), (2403, 11609), (2679, 10413), (3471, 8037), (4183, 6669), (5073, 5499)]