18087615

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 39338208

約数和(自身を除く): 21250593

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 91, 105, 117, 147, 195, 245, 273, 315, 441, 455, 585, 631, 637, 735, 819, 1365, 1893, 1911, 2205, 3155, 3185, 4095, 4417, 5679, 5733, 8203, 9465, 9555, 13251, 22085, 24609, 28395, 28665, 30919, 39753, 41015, 57421, 66255, 73827, 92757, 123045, 154595, 172263, 198765, 278271, 287105, 369135, 401947, 463785, 516789, 861315, 1205841, 1391355, 2009735, 2583945, 3617523, 6029205, 18087615]

約数ペア:

[(1, 18087615), (3, 6029205), (5, 3617523), (7, 2583945), (9, 2009735), (13, 1391355), (15, 1205841), (21, 861315), (35, 516789), (39, 463785), (45, 401947), (49, 369135), (63, 287105), (65, 278271), (91, 198765), (105, 172263), (117, 154595), (147, 123045), (195, 92757), (245, 73827), (273, 66255), (315, 57421), (441, 41015), (455, 39753), (585, 30919), (631, 28665), (637, 28395), (735, 24609), (819, 22085), (1365, 13251), (1893, 9555), (1911, 9465), (2205, 8203), (3155, 5733), (3185, 5679), (4095, 4417)]