18578865

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 32479488

約数和(自身を除く): 13900623

約数列:

[1, 3, 5, 15, 19, 47, 57, 73, 95, 141, 219, 235, 285, 361, 365, 705, 893, 1083, 1095, 1387, 1805, 2679, 3431, 4161, 4465, 5415, 6935, 10293, 13395, 16967, 17155, 20805, 26353, 50901, 51465, 65189, 79059, 84835, 131765, 195567, 254505, 325945, 395295, 977835, 1238591, 3715773, 6192955, 18578865]

約数ペア:

[(1, 18578865), (3, 6192955), (5, 3715773), (15, 1238591), (19, 977835), (47, 395295), (57, 325945), (73, 254505), (95, 195567), (141, 131765), (219, 84835), (235, 79059), (285, 65189), (361, 51465), (365, 50901), (705, 26353), (893, 20805), (1083, 17155), (1095, 16967), (1387, 13395), (1805, 10293), (2679, 6935), (3431, 5415), (4161, 4465)]