1991238057

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{1151}}^1$

素因数の和:1394

約数の個数: 48

約数和(自身を含む): 3095838720

約数和(自身を除く): 1104600663

約数列:

[1, 3, 9, 19, 57, 67, 151, 171, 201, 453, 603, 1151, 1273, 1359, 2869, 3453, 3819, 8607, 10117, 10359, 11457, 21869, 25821, 30351, 65607, 77117, 91053, 173801, 192223, 196821, 231351, 521403, 576669, 694053, 1465223, 1564209, 1730007, 3302219, 4395669, 9906657, 11644667, 13187007, 29719971, 34934001, 104802003, 221248673, 663746019, 1991238057]

約数ペア:

[(1, 1991238057), (3, 663746019), (9, 221248673), (19, 104802003), (57, 34934001), (67, 29719971), (151, 13187007), (171, 11644667), (201, 9906657), (453, 4395669), (603, 3302219), (1151, 1730007), (1273, 1564209), (1359, 1465223), (2869, 694053), (3453, 576669), (3819, 521403), (8607, 231351), (10117, 196821), (10359, 192223), (11457, 173801), (21869, 91053), (25821, 77117), (30351, 65607)]