18205173

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 32248320

約数和(自身を除く): 14043147

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 67, 133, 171, 201, 227, 399, 469, 603, 681, 1197, 1273, 1407, 1589, 2043, 3819, 4221, 4313, 4767, 8911, 11457, 12939, 14301, 15209, 26733, 30191, 38817, 45627, 80199, 90573, 106463, 136881, 271719, 288971, 319389, 866913, 958167, 2022797, 2600739, 6068391, 18205173]

約数ペア:

[(1, 18205173), (3, 6068391), (7, 2600739), (9, 2022797), (19, 958167), (21, 866913), (57, 319389), (63, 288971), (67, 271719), (133, 136881), (171, 106463), (201, 90573), (227, 80199), (399, 45627), (469, 38817), (603, 30191), (681, 26733), (1197, 15209), (1273, 14301), (1407, 12939), (1589, 11457), (2043, 8911), (3819, 4767), (4221, 4313)]