71706537

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 123182592

約数和(自身を除く): 51476055

約数列:

[1, 3, 7, 9, 21, 47, 61, 63, 141, 183, 329, 397, 423, 427, 549, 987, 1191, 1281, 2779, 2867, 2961, 3573, 3843, 8337, 8601, 18659, 20069, 24217, 25011, 25803, 55977, 60207, 72651, 130613, 167931, 169519, 180621, 217953, 391839, 508557, 1138199, 1175517, 1525671, 3414597, 7967393, 10243791, 23902179, 71706537]

約数ペア:

[(1, 71706537), (3, 23902179), (7, 10243791), (9, 7967393), (21, 3414597), (47, 1525671), (61, 1175517), (63, 1138199), (141, 508557), (183, 391839), (329, 217953), (397, 180621), (423, 169519), (427, 167931), (549, 130613), (987, 72651), (1191, 60207), (1281, 55977), (2779, 25803), (2867, 25011), (2961, 24217), (3573, 20069), (3843, 18659), (8337, 8601)]