21890470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 48153600

約数和(自身を除く): 26263130

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 109, 133, 151, 190, 218, 266, 302, 545, 665, 755, 763, 1057, 1090, 1330, 1510, 1526, 2071, 2114, 2869, 3815, 4142, 5285, 5738, 7630, 10355, 10570, 14345, 14497, 16459, 20083, 20710, 28690, 28994, 32918, 40166, 72485, 82295, 100415, 115213, 144970, 164590, 200830, 230426, 312721, 576065, 625442, 1152130, 1563605, 2189047, 3127210, 4378094, 10945235, 21890470]

約数ペア:

[(1, 21890470), (2, 10945235), (5, 4378094), (7, 3127210), (10, 2189047), (14, 1563605), (19, 1152130), (35, 625442), (38, 576065), (70, 312721), (95, 230426), (109, 200830), (133, 164590), (151, 144970), (190, 115213), (218, 100415), (266, 82295), (302, 72485), (545, 40166), (665, 32918), (755, 28994), (763, 28690), (1057, 20710), (1090, 20083), (1330, 16459), (1510, 14497), (1526, 14345), (2071, 10570), (2114, 10355), (2869, 7630), (3815, 5738), (4142, 5285)]