221837109

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1\times {\mathrm{421}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 326121600

約数和(自身を除く): 104284491

約数列:

[1, 3, 13, 39, 59, 177, 229, 421, 687, 767, 1263, 2301, 2977, 5473, 8931, 13511, 16419, 24839, 40533, 74517, 96409, 175643, 289227, 322907, 526929, 968721, 1253317, 3759951, 5688131, 17064393, 73945703, 221837109]

約数ペア:

[(1, 221837109), (3, 73945703), (13, 17064393), (39, 5688131), (59, 3759951), (177, 1253317), (229, 968721), (421, 526929), (687, 322907), (767, 289227), (1263, 175643), (2301, 96409), (2977, 74517), (5473, 40533), (8931, 24839), (13511, 16419)]