19391428

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 40279680

約数和(自身を除く): 20888252

約数列:

[1, 2, 4, 7, 14, 28, 53, 73, 106, 146, 179, 212, 292, 358, 371, 511, 716, 742, 1022, 1253, 1484, 2044, 2506, 3869, 5012, 7738, 9487, 13067, 15476, 18974, 26134, 27083, 37948, 52268, 54166, 66409, 91469, 108332, 132818, 182938, 265636, 365876, 692551, 1385102, 2770204, 4847857, 9695714, 19391428]

約数ペア:

[(1, 19391428), (2, 9695714), (4, 4847857), (7, 2770204), (14, 1385102), (28, 692551), (53, 365876), (73, 265636), (106, 182938), (146, 132818), (179, 108332), (212, 91469), (292, 66409), (358, 54166), (371, 52268), (511, 37948), (716, 27083), (742, 26134), (1022, 18974), (1253, 15476), (1484, 13067), (2044, 9487), (2506, 7738), (3869, 5012)]