20868156

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{30509}}^1$

素因数の和:30538

約数の個数: 36

約数和(自身を含む): 55528200

約数和(自身を除く): 34660044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 30509, 61018, 91527, 122036, 183054, 274581, 366108, 549162, 579671, 1098324, 1159342, 1739013, 2318684, 3478026, 5217039, 6956052, 10434078, 20868156]

約数ペア:

[(1, 20868156), (2, 10434078), (3, 6956052), (4, 5217039), (6, 3478026), (9, 2318684), (12, 1739013), (18, 1159342), (19, 1098324), (36, 579671), (38, 549162), (57, 366108), (76, 274581), (114, 183054), (171, 122036), (228, 91527), (342, 61018), (684, 30509)]