19978752

素因数分解:

$2^9\times 3^1\times {\mathrm{13007}}^1$

素因数の和:13028

約数の個数: 40

約数和(自身を含む): 53228736

約数和(自身を除く): 33249984

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, 1536, 13007, 26014, 39021, 52028, 78042, 104056, 156084, 208112, 312168, 416224, 624336, 832448, 1248672, 1664896, 2497344, 3329792, 4994688, 6659584, 9989376, 19978752]

約数ペア:

[(1, 19978752), (2, 9989376), (3, 6659584), (4, 4994688), (6, 3329792), (8, 2497344), (12, 1664896), (16, 1248672), (24, 832448), (32, 624336), (48, 416224), (64, 312168), (96, 208112), (128, 156084), (192, 104056), (256, 78042), (384, 52028), (512, 39021), (768, 26014), (1536, 13007)]