20702115

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1153}}^1$

素因数の和:1193

約数の個数: 64

約数和(自身を含む): 44313600

約数和(自身を除く): 23611485

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 95, 105, 133, 135, 171, 189, 285, 315, 399, 513, 665, 855, 945, 1153, 1197, 1995, 2565, 3459, 3591, 5765, 5985, 8071, 10377, 17295, 17955, 21907, 24213, 31131, 40355, 51885, 65721, 72639, 109535, 121065, 153349, 155655, 197163, 217917, 328605, 363195, 460047, 591489, 766745, 985815, 1089585, 1380141, 2300235, 2957445, 4140423, 6900705, 20702115]

約数ペア:

[(1, 20702115), (3, 6900705), (5, 4140423), (7, 2957445), (9, 2300235), (15, 1380141), (19, 1089585), (21, 985815), (27, 766745), (35, 591489), (45, 460047), (57, 363195), (63, 328605), (95, 217917), (105, 197163), (133, 155655), (135, 153349), (171, 121065), (189, 109535), (285, 72639), (315, 65721), (399, 51885), (513, 40355), (665, 31131), (855, 24213), (945, 21907), (1153, 17955), (1197, 17295), (1995, 10377), (2565, 8071), (3459, 5985), (3591, 5765)]