20493828

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{467}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 55194048

約数和(自身を除く): 34700220

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 53, 69, 92, 106, 138, 159, 207, 212, 276, 318, 414, 467, 477, 636, 828, 934, 954, 1219, 1401, 1868, 1908, 2438, 2802, 3657, 4203, 4876, 5604, 7314, 8406, 10741, 10971, 14628, 16812, 21482, 21942, 24751, 32223, 42964, 43884, 49502, 64446, 74253, 96669, 99004, 128892, 148506, 193338, 222759, 297012, 386676, 445518, 569273, 891036, 1138546, 1707819, 2277092, 3415638, 5123457, 6831276, 10246914, 20493828]

約数ペア:

[(1, 20493828), (2, 10246914), (3, 6831276), (4, 5123457), (6, 3415638), (9, 2277092), (12, 1707819), (18, 1138546), (23, 891036), (36, 569273), (46, 445518), (53, 386676), (69, 297012), (92, 222759), (106, 193338), (138, 148506), (159, 128892), (207, 99004), (212, 96669), (276, 74253), (318, 64446), (414, 49502), (467, 43884), (477, 42964), (636, 32223), (828, 24751), (934, 21942), (954, 21482), (1219, 16812), (1401, 14628), (1868, 10971), (1908, 10741), (2438, 8406), (2802, 7314), (3657, 5604), (4203, 4876)]