18137847

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 31216640

約数和(自身を除く): 13078793

約数列:

[1, 3, 7, 13, 21, 29, 39, 79, 87, 91, 203, 237, 273, 377, 553, 609, 841, 1027, 1131, 1659, 2291, 2523, 2639, 3081, 5887, 6873, 7189, 7917, 10933, 16037, 17661, 21567, 29783, 32799, 48111, 66439, 76531, 89349, 199317, 208481, 229593, 465073, 625443, 863707, 1395219, 2591121, 6045949, 18137847]

約数ペア:

[(1, 18137847), (3, 6045949), (7, 2591121), (13, 1395219), (21, 863707), (29, 625443), (39, 465073), (79, 229593), (87, 208481), (91, 199317), (203, 89349), (237, 76531), (273, 66439), (377, 48111), (553, 32799), (609, 29783), (841, 21567), (1027, 17661), (1131, 16037), (1659, 10933), (2291, 7917), (2523, 7189), (2639, 6873), (3081, 5887)]