28539387

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 45826560

約数和(自身を除く): 17287173

約数列:

[1, 3, 9, 19, 47, 53, 57, 67, 141, 159, 171, 201, 423, 477, 603, 893, 1007, 1273, 2491, 2679, 3021, 3149, 3551, 3819, 7473, 8037, 9063, 9447, 10653, 11457, 22419, 28341, 31959, 47329, 59831, 67469, 141987, 166897, 179493, 202407, 425961, 500691, 538479, 607221, 1502073, 3171043, 9513129, 28539387]

約数ペア:

[(1, 28539387), (3, 9513129), (9, 3171043), (19, 1502073), (47, 607221), (53, 538479), (57, 500691), (67, 425961), (141, 202407), (159, 179493), (171, 166897), (201, 141987), (423, 67469), (477, 59831), (603, 47329), (893, 31959), (1007, 28341), (1273, 22419), (2491, 11457), (2679, 10653), (3021, 9447), (3149, 9063), (3551, 8037), (3819, 7473)]