21236265

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16273}}^1$

素因数の和:16313

約数の個数: 24

約数和(自身を含む): 38081160

約数和(自身を除く): 16844895

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16273, 48819, 81365, 146457, 244095, 471917, 732285, 1415751, 2359585, 4247253, 7078755, 21236265]

約数ペア:

[(1, 21236265), (3, 7078755), (5, 4247253), (9, 2359585), (15, 1415751), (29, 732285), (45, 471917), (87, 244095), (145, 146457), (261, 81365), (435, 48819), (1305, 16273)]