19777797

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{67}}^1$

素因数の和:147

約数の個数: 48

約数和(自身を含む): 33167680

約数和(自身を除く): 13389883

約数列:

[1, 3, 9, 13, 27, 29, 39, 67, 87, 117, 201, 261, 351, 377, 603, 783, 841, 871, 1131, 1809, 1943, 2523, 2613, 3393, 5829, 7569, 7839, 10179, 10933, 17487, 22707, 23517, 25259, 32799, 52461, 56347, 75777, 98397, 169041, 227331, 295191, 507123, 681993, 732511, 1521369, 2197533, 6592599, 19777797]

約数ペア:

[(1, 19777797), (3, 6592599), (9, 2197533), (13, 1521369), (27, 732511), (29, 681993), (39, 507123), (67, 295191), (87, 227331), (117, 169041), (201, 98397), (261, 75777), (351, 56347), (377, 52461), (603, 32799), (783, 25259), (841, 23517), (871, 22707), (1131, 17487), (1809, 10933), (1943, 10179), (2523, 7839), (2613, 7569), (3393, 5829)]