18966285

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 37013760

約数和(自身を除く): 18047475

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 101, 107, 117, 135, 195, 303, 321, 351, 505, 535, 585, 909, 963, 1313, 1391, 1515, 1605, 1755, 2727, 2889, 3939, 4173, 4545, 4815, 6565, 6955, 10807, 11817, 12519, 13635, 14445, 19695, 20865, 32421, 35451, 37557, 54035, 59085, 62595, 97263, 140491, 162105, 177255, 187785, 291789, 421473, 486315, 702455, 1264419, 1458945, 2107365, 3793257, 6322095, 18966285]

約数ペア:

[(1, 18966285), (3, 6322095), (5, 3793257), (9, 2107365), (13, 1458945), (15, 1264419), (27, 702455), (39, 486315), (45, 421473), (65, 291789), (101, 187785), (107, 177255), (117, 162105), (135, 140491), (195, 97263), (303, 62595), (321, 59085), (351, 54035), (505, 37557), (535, 35451), (585, 32421), (909, 20865), (963, 19695), (1313, 14445), (1391, 13635), (1515, 12519), (1605, 11817), (1755, 10807), (2727, 6955), (2889, 6565), (3939, 4815), (4173, 4545)]