21791152

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 43590960

約数和(自身を除く): 21799808

約数列:

[1, 2, 4, 8, 16, 61, 83, 122, 166, 244, 269, 332, 488, 538, 664, 976, 1076, 1328, 2152, 4304, 5063, 10126, 16409, 20252, 22327, 32818, 40504, 44654, 65636, 81008, 89308, 131272, 178616, 262544, 357232, 1361947, 2723894, 5447788, 10895576, 21791152]

約数ペア:

[(1, 21791152), (2, 10895576), (4, 5447788), (8, 2723894), (16, 1361947), (61, 357232), (83, 262544), (122, 178616), (166, 131272), (244, 89308), (269, 81008), (332, 65636), (488, 44654), (538, 40504), (664, 32818), (976, 22327), (1076, 20252), (1328, 16409), (2152, 10126), (4304, 5063)]