21189142

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{727}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 36691200

約数和(自身を除く): 15502058

約数列:

[1, 2, 13, 19, 26, 38, 59, 118, 247, 494, 727, 767, 1121, 1454, 1534, 2242, 9451, 13813, 14573, 18902, 27626, 29146, 42893, 85786, 179569, 359138, 557609, 814967, 1115218, 1629934, 10594571, 21189142]

約数ペア:

[(1, 21189142), (2, 10594571), (13, 1629934), (19, 1115218), (26, 814967), (38, 557609), (59, 359138), (118, 179569), (247, 85786), (494, 42893), (727, 29146), (767, 27626), (1121, 18902), (1454, 14573), (1534, 13813), (2242, 9451)]