18203805

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 35020800

約数和(自身を除く): 16816995

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 47, 57, 95, 135, 141, 151, 171, 235, 285, 423, 453, 513, 705, 755, 855, 893, 1269, 1359, 2115, 2265, 2565, 2679, 2869, 4077, 4465, 6345, 6795, 7097, 8037, 8607, 13395, 14345, 20385, 21291, 24111, 25821, 35485, 40185, 43035, 63873, 77463, 106455, 120555, 129105, 134843, 191619, 319365, 387315, 404529, 674215, 958095, 1213587, 2022645, 3640761, 6067935, 18203805]

約数ペア:

[(1, 18203805), (3, 6067935), (5, 3640761), (9, 2022645), (15, 1213587), (19, 958095), (27, 674215), (45, 404529), (47, 387315), (57, 319365), (95, 191619), (135, 134843), (141, 129105), (151, 120555), (171, 106455), (235, 77463), (285, 63873), (423, 43035), (453, 40185), (513, 35485), (705, 25821), (755, 24111), (855, 21291), (893, 20385), (1269, 14345), (1359, 13395), (2115, 8607), (2265, 8037), (2565, 7097), (2679, 6795), (2869, 6345), (4077, 4465)]