21092955

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4703}}^1$

素因数の和:4747

約数の個数: 32

約数和(自身を含む): 37933056

約数和(自身を除く): 16840101

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4703, 14109, 23515, 61139, 70545, 108169, 183417, 305695, 324507, 540845, 917085, 1406197, 1622535, 4218591, 7030985, 21092955]

約数ペア:

[(1, 21092955), (3, 7030985), (5, 4218591), (13, 1622535), (15, 1406197), (23, 917085), (39, 540845), (65, 324507), (69, 305695), (115, 183417), (195, 108169), (299, 70545), (345, 61139), (897, 23515), (1495, 14109), (4485, 4703)]