18780816

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{20593}}^1$

素因数の和:20623

約数の個数: 40

約数和(自身を含む): 51073120

約数和(自身を除く): 32292304

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912, 20593, 41186, 61779, 82372, 123558, 164744, 247116, 329488, 391267, 494232, 782534, 988464, 1173801, 1565068, 2347602, 3130136, 4695204, 6260272, 9390408, 18780816]

約数ペア:

[(1, 18780816), (2, 9390408), (3, 6260272), (4, 4695204), (6, 3130136), (8, 2347602), (12, 1565068), (16, 1173801), (19, 988464), (24, 782534), (38, 494232), (48, 391267), (57, 329488), (76, 247116), (114, 164744), (152, 123558), (228, 82372), (304, 61779), (456, 41186), (912, 20593)]