18216345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 36679680

約数和(自身を除く): 18463335

約数列:

[1, 3, 5, 7, 15, 19, 21, 23, 35, 57, 69, 95, 105, 115, 133, 161, 285, 345, 397, 399, 437, 483, 665, 805, 1191, 1311, 1985, 1995, 2185, 2415, 2779, 3059, 5955, 6555, 7543, 8337, 9131, 9177, 13895, 15295, 22629, 27393, 37715, 41685, 45655, 45885, 52801, 63917, 113145, 136965, 158403, 173489, 191751, 264005, 319585, 520467, 792015, 867445, 958755, 1214423, 2602335, 3643269, 6072115, 18216345]

約数ペア:

[(1, 18216345), (3, 6072115), (5, 3643269), (7, 2602335), (15, 1214423), (19, 958755), (21, 867445), (23, 792015), (35, 520467), (57, 319585), (69, 264005), (95, 191751), (105, 173489), (115, 158403), (133, 136965), (161, 113145), (285, 63917), (345, 52801), (397, 45885), (399, 45655), (437, 41685), (483, 37715), (665, 27393), (805, 22629), (1191, 15295), (1311, 13895), (1985, 9177), (1995, 9131), (2185, 8337), (2415, 7543), (2779, 6555), (3059, 5955)]