20164578

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{641}}^1$

素因数の和:767

約数の個数: 48

約数和(自身を含む): 47425824

約数和(自身を除く): 27261246

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 107, 147, 214, 294, 321, 641, 642, 749, 1282, 1498, 1923, 2247, 3846, 4487, 4494, 5243, 8974, 10486, 13461, 15729, 26922, 31409, 31458, 62818, 68587, 94227, 137174, 188454, 205761, 411522, 480109, 960218, 1440327, 2880654, 3360763, 6721526, 10082289, 20164578]

約数ペア:

[(1, 20164578), (2, 10082289), (3, 6721526), (6, 3360763), (7, 2880654), (14, 1440327), (21, 960218), (42, 480109), (49, 411522), (98, 205761), (107, 188454), (147, 137174), (214, 94227), (294, 68587), (321, 62818), (641, 31458), (642, 31409), (749, 26922), (1282, 15729), (1498, 13461), (1923, 10486), (2247, 8974), (3846, 5243), (4487, 4494)]