221809716

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{647}}^1$

素因数の和:853

約数の個数: 72

約数和(自身を含む): 573168960

約数和(自身を除く): 351359244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 107, 178, 214, 267, 321, 356, 428, 534, 642, 647, 801, 963, 1068, 1284, 1294, 1602, 1926, 1941, 2588, 3204, 3852, 3882, 5823, 7764, 9523, 11646, 19046, 23292, 28569, 38092, 57138, 57583, 69229, 85707, 114276, 115166, 138458, 171414, 172749, 207687, 230332, 276916, 342828, 345498, 415374, 518247, 623061, 690996, 830748, 1036494, 1246122, 2072988, 2492244, 6161381, 12322762, 18484143, 24645524, 36968286, 55452429, 73936572, 110904858, 221809716]

約数ペア:

[(1, 221809716), (2, 110904858), (3, 73936572), (4, 55452429), (6, 36968286), (9, 24645524), (12, 18484143), (18, 12322762), (36, 6161381), (89, 2492244), (107, 2072988), (178, 1246122), (214, 1036494), (267, 830748), (321, 690996), (356, 623061), (428, 518247), (534, 415374), (642, 345498), (647, 342828), (801, 276916), (963, 230332), (1068, 207687), (1284, 172749), (1294, 171414), (1602, 138458), (1926, 115166), (1941, 114276), (2588, 85707), (3204, 69229), (3852, 57583), (3882, 57138), (5823, 38092), (7764, 28569), (9523, 23292), (11646, 19046)]