216403785

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123307}}^1$

素因数の和:123334

約数の個数: 32

約数和(自身を含む): 414314880

約数和(自身を除く): 197911095

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 123307, 369921, 616535, 1109763, 1602991, 1849605, 3329289, 4808973, 5548815, 8014955, 14426919, 16646445, 24044865, 43280757, 72134595, 216403785]

約数ペア:

[(1, 216403785), (3, 72134595), (5, 43280757), (9, 24044865), (13, 16646445), (15, 14426919), (27, 8014955), (39, 5548815), (45, 4808973), (65, 3329289), (117, 1849605), (135, 1602991), (195, 1109763), (351, 616535), (585, 369921), (1755, 123307)]