221569104687

素因数分解:

$3^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{1693}}^1\times {\mathrm{3547}}^1$

素因数の和:5508

約数の個数: 48

約数和(自身を含む): 345328486272

約数和(自身を除く): 123759381585

約数列:

[1, 3, 7, 21, 49, 147, 251, 753, 1693, 1757, 3547, 5079, 5271, 10641, 11851, 12299, 24829, 35553, 36897, 74487, 82957, 173803, 248871, 424943, 521409, 890297, 1274829, 2670891, 2974601, 6005071, 6232079, 8923803, 18015213, 18696237, 20822207, 42035497, 43624553, 62466621, 126106491, 130873659, 294248479, 882745437, 1507272821, 4521818463, 10550909747, 31652729241, 73856368229, 221569104687]

約数ペア:

[(1, 221569104687), (3, 73856368229), (7, 31652729241), (21, 10550909747), (49, 4521818463), (147, 1507272821), (251, 882745437), (753, 294248479), (1693, 130873659), (1757, 126106491), (3547, 62466621), (5079, 43624553), (5271, 42035497), (10641, 20822207), (11851, 18696237), (12299, 18015213), (24829, 8923803), (35553, 6232079), (36897, 6005071), (74487, 2974601), (82957, 2670891), (173803, 1274829), (248871, 890297), (424943, 521409)]