19540818

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{491}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 48176640

約数和(自身を除く): 28635822

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 67, 99, 134, 198, 201, 297, 402, 491, 594, 603, 737, 982, 1206, 1473, 1474, 1809, 2211, 2946, 3618, 4419, 4422, 5401, 6633, 8838, 10802, 13257, 13266, 16203, 19899, 26514, 32406, 32897, 39798, 48609, 65794, 97218, 98691, 145827, 197382, 291654, 296073, 361867, 592146, 723734, 888219, 1085601, 1776438, 2171202, 3256803, 6513606, 9770409, 19540818]

約数ペア:

[(1, 19540818), (2, 9770409), (3, 6513606), (6, 3256803), (9, 2171202), (11, 1776438), (18, 1085601), (22, 888219), (27, 723734), (33, 592146), (54, 361867), (66, 296073), (67, 291654), (99, 197382), (134, 145827), (198, 98691), (201, 97218), (297, 65794), (402, 48609), (491, 39798), (594, 32897), (603, 32406), (737, 26514), (982, 19899), (1206, 16203), (1473, 13266), (1474, 13257), (1809, 10802), (2211, 8838), (2946, 6633), (3618, 5401), (4419, 4422)]