19696761

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 35178624

約数和(自身を除く): 15481863

約数列:

[1, 3, 7, 9, 17, 21, 51, 53, 63, 119, 153, 159, 347, 357, 371, 477, 901, 1041, 1071, 1113, 2429, 2703, 3123, 3339, 5899, 6307, 7287, 8109, 17697, 18391, 18921, 21861, 41293, 53091, 55173, 56763, 123879, 128737, 165519, 312647, 371637, 386211, 937941, 1158633, 2188529, 2813823, 6565587, 19696761]

約数ペア:

[(1, 19696761), (3, 6565587), (7, 2813823), (9, 2188529), (17, 1158633), (21, 937941), (51, 386211), (53, 371637), (63, 312647), (119, 165519), (153, 128737), (159, 123879), (347, 56763), (357, 55173), (371, 53091), (477, 41293), (901, 21861), (1041, 18921), (1071, 18391), (1113, 17697), (2429, 8109), (2703, 7287), (3123, 6307), (3339, 5899)]