20543397

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 33926400

約数和(自身を除く): 13383003

約数列:

[1, 3, 7, 21, 29, 49, 61, 79, 87, 147, 183, 203, 237, 427, 553, 609, 1281, 1421, 1659, 1769, 2291, 2989, 3871, 4263, 4819, 5307, 6873, 8967, 11613, 12383, 14457, 16037, 33733, 37149, 48111, 86681, 101199, 112259, 139751, 236131, 260043, 336777, 419253, 708393, 978257, 2934771, 6847799, 20543397]

約数ペア:

[(1, 20543397), (3, 6847799), (7, 2934771), (21, 978257), (29, 708393), (49, 419253), (61, 336777), (79, 260043), (87, 236131), (147, 139751), (183, 112259), (203, 101199), (237, 86681), (427, 48111), (553, 37149), (609, 33733), (1281, 16037), (1421, 14457), (1659, 12383), (1769, 11613), (2291, 8967), (2989, 6873), (3871, 5307), (4263, 4819)]