21987312548

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1\times {\mathrm{2243}}^1$

素因数の和:2856

約数の個数: 48

約数和(自身を含む): 39649505280

約数和(自身を除く): 17662192732

約数列:

[1, 2, 4, 67, 79, 134, 158, 268, 316, 463, 926, 1852, 2243, 4486, 5293, 8972, 10586, 21172, 31021, 36577, 62042, 73154, 124084, 146308, 150281, 177197, 300562, 354394, 601124, 708788, 1038509, 2077018, 2450659, 4154036, 4901318, 9802636, 11872199, 23744398, 47488796, 69580103, 82042211, 139160206, 164084422, 278320412, 328168844, 5496828137, 10993656274, 21987312548]

約数ペア:

[(1, 21987312548), (2, 10993656274), (4, 5496828137), (67, 328168844), (79, 278320412), (134, 164084422), (158, 139160206), (268, 82042211), (316, 69580103), (463, 47488796), (926, 23744398), (1852, 11872199), (2243, 9802636), (4486, 4901318), (5293, 4154036), (8972, 2450659), (10586, 2077018), (21172, 1038509), (31021, 708788), (36577, 601124), (62042, 354394), (73154, 300562), (124084, 177197), (146308, 150281)]