20985338

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{619}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 36426240

約数和(自身を除く): 15440902

約数列:

[1, 2, 11, 22, 23, 46, 67, 134, 253, 506, 619, 737, 1238, 1474, 1541, 3082, 6809, 13618, 14237, 16951, 28474, 33902, 41473, 82946, 156607, 313214, 456203, 912406, 953879, 1907758, 10492669, 20985338]

約数ペア:

[(1, 20985338), (2, 10492669), (11, 1907758), (22, 953879), (23, 912406), (46, 456203), (67, 313214), (134, 156607), (253, 82946), (506, 41473), (619, 33902), (737, 28474), (1238, 16951), (1474, 14237), (1541, 13618), (3082, 6809)]