21326500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 53385696

約数和(自身を除く): 32059196

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 125, 130, 170, 193, 221, 250, 260, 325, 340, 386, 425, 442, 500, 650, 772, 850, 884, 965, 1105, 1300, 1625, 1700, 1930, 2125, 2210, 2509, 3250, 3281, 3860, 4250, 4420, 4825, 5018, 5525, 6500, 6562, 8500, 9650, 10036, 11050, 12545, 13124, 16405, 19300, 22100, 24125, 25090, 27625, 32810, 42653, 48250, 50180, 55250, 62725, 65620, 82025, 85306, 96500, 110500, 125450, 164050, 170612, 213265, 250900, 313625, 328100, 410125, 426530, 627250, 820250, 853060, 1066325, 1254500, 1640500, 2132650, 4265300, 5331625, 10663250, 21326500]

約数ペア:

[(1, 21326500), (2, 10663250), (4, 5331625), (5, 4265300), (10, 2132650), (13, 1640500), (17, 1254500), (20, 1066325), (25, 853060), (26, 820250), (34, 627250), (50, 426530), (52, 410125), (65, 328100), (68, 313625), (85, 250900), (100, 213265), (125, 170612), (130, 164050), (170, 125450), (193, 110500), (221, 96500), (250, 85306), (260, 82025), (325, 65620), (340, 62725), (386, 55250), (425, 50180), (442, 48250), (500, 42653), (650, 32810), (772, 27625), (850, 25090), (884, 24125), (965, 22100), (1105, 19300), (1300, 16405), (1625, 13124), (1700, 12545), (1930, 11050), (2125, 10036), (2210, 9650), (2509, 8500), (3250, 6562), (3281, 6500), (3860, 5525), (4250, 5018), (4420, 4825)]