18953984

素因数分解:

$2^8\times 7^2\times {\mathrm{1511}}^1$

素因数の和:1541

約数の個数: 54

約数和(自身を含む): 44040024

約数和(自身を除く): 25086040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1511, 1568, 1792, 3022, 3136, 6044, 6272, 10577, 12088, 12544, 21154, 24176, 42308, 48352, 74039, 84616, 96704, 148078, 169232, 193408, 296156, 338464, 386816, 592312, 676928, 1184624, 1353856, 2369248, 2707712, 4738496, 9476992, 18953984]

約数ペア:

[(1, 18953984), (2, 9476992), (4, 4738496), (7, 2707712), (8, 2369248), (14, 1353856), (16, 1184624), (28, 676928), (32, 592312), (49, 386816), (56, 338464), (64, 296156), (98, 193408), (112, 169232), (128, 148078), (196, 96704), (224, 84616), (256, 74039), (392, 48352), (448, 42308), (784, 24176), (896, 21154), (1511, 12544), (1568, 12088), (1792, 10577), (3022, 6272), (3136, 6044)]