21178272

素因数分解:

$2^5\times 3^1\times {\mathrm{167}}^1\times {\mathrm{1321}}^1$

素因数の和:1501

約数の個数: 48

約数和(自身を含む): 55968192

約数和(自身を除く): 34789920

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 167, 334, 501, 668, 1002, 1321, 1336, 2004, 2642, 2672, 3963, 4008, 5284, 5344, 7926, 8016, 10568, 15852, 16032, 21136, 31704, 42272, 63408, 126816, 220607, 441214, 661821, 882428, 1323642, 1764856, 2647284, 3529712, 5294568, 7059424, 10589136, 21178272]

約数ペア:

[(1, 21178272), (2, 10589136), (3, 7059424), (4, 5294568), (6, 3529712), (8, 2647284), (12, 1764856), (16, 1323642), (24, 882428), (32, 661821), (48, 441214), (96, 220607), (167, 126816), (334, 63408), (501, 42272), (668, 31704), (1002, 21136), (1321, 16032), (1336, 15852), (2004, 10568), (2642, 8016), (2672, 7926), (3963, 5344), (4008, 5284)]