15554721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{251}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 25740288

約数和(自身を除く): 10185567

約数列:

[1, 3, 7, 13, 21, 39, 91, 227, 251, 273, 681, 753, 1589, 1757, 2951, 3263, 4767, 5271, 8853, 9789, 20657, 22841, 56977, 61971, 68523, 170931, 398839, 740701, 1196517, 2222103, 5184907, 15554721]

約数ペア:

[(1, 15554721), (3, 5184907), (7, 2222103), (13, 1196517), (21, 740701), (39, 398839), (91, 170931), (227, 68523), (251, 61971), (273, 56977), (681, 22841), (753, 20657), (1589, 9789), (1757, 8853), (2951, 5271), (3263, 4767)]