21981672

素因数分解:

$2^3\times 3^3\times {\mathrm{149}}^1\times {\mathrm{683}}^1$

素因数の和:847

約数の個数: 64

約数和(自身を含む): 61560000

約数和(自身を除く): 39578328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 149, 216, 298, 447, 596, 683, 894, 1192, 1341, 1366, 1788, 2049, 2682, 2732, 3576, 4023, 4098, 5364, 5464, 6147, 8046, 8196, 10728, 12294, 16092, 16392, 18441, 24588, 32184, 36882, 49176, 73764, 101767, 147528, 203534, 305301, 407068, 610602, 814136, 915903, 1221204, 1831806, 2442408, 2747709, 3663612, 5495418, 7327224, 10990836, 21981672]

約数ペア:

[(1, 21981672), (2, 10990836), (3, 7327224), (4, 5495418), (6, 3663612), (8, 2747709), (9, 2442408), (12, 1831806), (18, 1221204), (24, 915903), (27, 814136), (36, 610602), (54, 407068), (72, 305301), (108, 203534), (149, 147528), (216, 101767), (298, 73764), (447, 49176), (596, 36882), (683, 32184), (894, 24588), (1192, 18441), (1341, 16392), (1366, 16092), (1788, 12294), (2049, 10728), (2682, 8196), (2732, 8046), (3576, 6147), (4023, 5464), (4098, 5364)]