217871931

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 306551808

約数和(自身を除く): 88679877

約数列:

[1, 3, 47, 61, 73, 141, 183, 219, 347, 1041, 2867, 3431, 4453, 8601, 10293, 13359, 16309, 21167, 25331, 48927, 63501, 75993, 209291, 627873, 994849, 1190557, 1545191, 2984547, 3571671, 4635573, 72623977, 217871931]

約数ペア:

[(1, 217871931), (3, 72623977), (47, 4635573), (61, 3571671), (73, 2984547), (141, 1545191), (183, 1190557), (219, 994849), (347, 627873), (1041, 209291), (2867, 75993), (3431, 63501), (4453, 48927), (8601, 25331), (10293, 21167), (13359, 16309)]