18720504

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^1\times {\mathrm{7879}}^1$

素因数の和:7905

約数の個数: 64

約数和(自身を含む): 56736000

約数和(自身を除く): 38015496

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 88, 99, 108, 132, 198, 216, 264, 297, 396, 594, 792, 1188, 2376, 7879, 15758, 23637, 31516, 47274, 63032, 70911, 86669, 94548, 141822, 173338, 189096, 212733, 260007, 283644, 346676, 425466, 520014, 567288, 693352, 780021, 850932, 1040028, 1560042, 1701864, 2080056, 2340063, 3120084, 4680126, 6240168, 9360252, 18720504]

約数ペア:

[(1, 18720504), (2, 9360252), (3, 6240168), (4, 4680126), (6, 3120084), (8, 2340063), (9, 2080056), (11, 1701864), (12, 1560042), (18, 1040028), (22, 850932), (24, 780021), (27, 693352), (33, 567288), (36, 520014), (44, 425466), (54, 346676), (66, 283644), (72, 260007), (88, 212733), (99, 189096), (108, 173338), (132, 141822), (198, 94548), (216, 86669), (264, 70911), (297, 63032), (396, 47274), (594, 31516), (792, 23637), (1188, 15758), (2376, 7879)]