18312516

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 48222720

約数和(自身を除く): 29910204

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 79, 94, 137, 141, 158, 188, 237, 274, 282, 316, 411, 423, 474, 548, 564, 711, 822, 846, 948, 1233, 1422, 1644, 1692, 2466, 2844, 3713, 4932, 6439, 7426, 10823, 11139, 12878, 14852, 19317, 21646, 22278, 25756, 32469, 33417, 38634, 43292, 44556, 57951, 64938, 66834, 77268, 97407, 115902, 129876, 133668, 194814, 231804, 389628, 508681, 1017362, 1526043, 2034724, 3052086, 4578129, 6104172, 9156258, 18312516]

約数ペア:

[(1, 18312516), (2, 9156258), (3, 6104172), (4, 4578129), (6, 3052086), (9, 2034724), (12, 1526043), (18, 1017362), (36, 508681), (47, 389628), (79, 231804), (94, 194814), (137, 133668), (141, 129876), (158, 115902), (188, 97407), (237, 77268), (274, 66834), (282, 64938), (316, 57951), (411, 44556), (423, 43292), (474, 38634), (548, 33417), (564, 32469), (711, 25756), (822, 22278), (846, 21646), (948, 19317), (1233, 14852), (1422, 12878), (1644, 11139), (1692, 10823), (2466, 7426), (2844, 6439), (3713, 4932)]