21096040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1277}}^1$

素因数の和:1354

約数の個数: 64

約数和(自身を含む): 55209600

約数和(自身を除く): 34113560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 118, 140, 236, 280, 295, 413, 472, 590, 826, 1180, 1277, 1652, 2065, 2360, 2554, 3304, 4130, 5108, 6385, 8260, 8939, 10216, 12770, 16520, 17878, 25540, 35756, 44695, 51080, 71512, 75343, 89390, 150686, 178780, 301372, 357560, 376715, 527401, 602744, 753430, 1054802, 1506860, 2109604, 2637005, 3013720, 4219208, 5274010, 10548020, 21096040]

約数ペア:

[(1, 21096040), (2, 10548020), (4, 5274010), (5, 4219208), (7, 3013720), (8, 2637005), (10, 2109604), (14, 1506860), (20, 1054802), (28, 753430), (35, 602744), (40, 527401), (56, 376715), (59, 357560), (70, 301372), (118, 178780), (140, 150686), (236, 89390), (280, 75343), (295, 71512), (413, 51080), (472, 44695), (590, 35756), (826, 25540), (1180, 17878), (1277, 16520), (1652, 12770), (2065, 10216), (2360, 8939), (2554, 8260), (3304, 6385), (4130, 5108)]