217119555

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1801}}^1$

素因数の和:1881

約数の個数: 64

約数和(自身を含む): 415180800

約数和(自身を除く): 198061245

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 47, 57, 95, 135, 141, 171, 235, 285, 423, 513, 705, 855, 893, 1269, 1801, 2115, 2565, 2679, 4465, 5403, 6345, 8037, 9005, 13395, 16209, 24111, 27015, 34219, 40185, 48627, 81045, 84647, 102657, 120555, 171095, 243135, 253941, 307971, 423235, 513285, 761823, 923913, 1269705, 1539855, 1608293, 2285469, 3809115, 4619565, 4824879, 8041465, 11427345, 14474637, 24124395, 43423911, 72373185, 217119555]

約数ペア:

[(1, 217119555), (3, 72373185), (5, 43423911), (9, 24124395), (15, 14474637), (19, 11427345), (27, 8041465), (45, 4824879), (47, 4619565), (57, 3809115), (95, 2285469), (135, 1608293), (141, 1539855), (171, 1269705), (235, 923913), (285, 761823), (423, 513285), (513, 423235), (705, 307971), (855, 253941), (893, 243135), (1269, 171095), (1801, 120555), (2115, 102657), (2565, 84647), (2679, 81045), (4465, 48627), (5403, 40185), (6345, 34219), (8037, 27015), (9005, 24111), (13395, 16209)]