21373770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 35028150

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 239, 271, 330, 478, 542, 717, 813, 1195, 1355, 1434, 1626, 2390, 2629, 2710, 2981, 3585, 4065, 5258, 5962, 7170, 7887, 8130, 8943, 13145, 14905, 15774, 17886, 26290, 29810, 39435, 44715, 64769, 78870, 89430, 129538, 194307, 323845, 388614, 647690, 712459, 971535, 1424918, 1943070, 2137377, 3562295, 4274754, 7124590, 10686885, 21373770]

約数ペア:

[(1, 21373770), (2, 10686885), (3, 7124590), (5, 4274754), (6, 3562295), (10, 2137377), (11, 1943070), (15, 1424918), (22, 971535), (30, 712459), (33, 647690), (55, 388614), (66, 323845), (110, 194307), (165, 129538), (239, 89430), (271, 78870), (330, 64769), (478, 44715), (542, 39435), (717, 29810), (813, 26290), (1195, 17886), (1355, 15774), (1434, 14905), (1626, 13145), (2390, 8943), (2629, 8130), (2710, 7887), (2981, 7170), (3585, 5962), (4065, 5258)]