19561682

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 36246528

約数和(自身を除く): 16684846

約数列:

[1, 2, 7, 14, 31, 47, 49, 62, 94, 98, 137, 217, 274, 329, 434, 658, 959, 1457, 1519, 1918, 2303, 2914, 3038, 4247, 4606, 6439, 6713, 8494, 10199, 12878, 13426, 20398, 29729, 45073, 59458, 71393, 90146, 142786, 199609, 208103, 315511, 399218, 416206, 631022, 1397263, 2794526, 9780841, 19561682]

約数ペア:

[(1, 19561682), (2, 9780841), (7, 2794526), (14, 1397263), (31, 631022), (47, 416206), (49, 399218), (62, 315511), (94, 208103), (98, 199609), (137, 142786), (217, 90146), (274, 71393), (329, 59458), (434, 45073), (658, 29729), (959, 20398), (1457, 13426), (1519, 12878), (1918, 10199), (2303, 8494), (2914, 6713), (3038, 6439), (4247, 4606)]