21066786

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:675

約数の個数: 48

約数和(自身を含む): 49513464

約数和(自身を除く): 28446678

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 197, 234, 394, 457, 591, 914, 1182, 1371, 1773, 2561, 2742, 3546, 4113, 5122, 5941, 7683, 8226, 11882, 15366, 17823, 23049, 35646, 46098, 53469, 90029, 106938, 180058, 270087, 540174, 810261, 1170377, 1620522, 2340754, 3511131, 7022262, 10533393, 21066786]

約数ペア:

[(1, 21066786), (2, 10533393), (3, 7022262), (6, 3511131), (9, 2340754), (13, 1620522), (18, 1170377), (26, 810261), (39, 540174), (78, 270087), (117, 180058), (197, 106938), (234, 90029), (394, 53469), (457, 46098), (591, 35646), (914, 23049), (1182, 17823), (1371, 15366), (1773, 11882), (2561, 8226), (2742, 7683), (3546, 5941), (4113, 5122)]