19511730

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{30971}}^1$

素因数の和:30991

約数の個数: 48

約数和(自身を含む): 57979584

約数和(自身を除く): 38467854

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 30971, 61942, 92913, 154855, 185826, 216797, 278739, 309710, 433594, 464565, 557478, 650391, 929130, 1083985, 1300782, 1393695, 1951173, 2167970, 2787390, 3251955, 3902346, 6503910, 9755865, 19511730]

約数ペア:

[(1, 19511730), (2, 9755865), (3, 6503910), (5, 3902346), (6, 3251955), (7, 2787390), (9, 2167970), (10, 1951173), (14, 1393695), (15, 1300782), (18, 1083985), (21, 929130), (30, 650391), (35, 557478), (42, 464565), (45, 433594), (63, 309710), (70, 278739), (90, 216797), (105, 185826), (126, 154855), (210, 92913), (315, 61942), (630, 30971)]