21280350

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1559}}^1$

素因数の和:1594

約数の個数: 96

約数和(自身を含む): 64995840

約数和(自身を除く): 43715490

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 25, 26, 30, 35, 39, 42, 50, 65, 70, 75, 78, 91, 105, 130, 150, 175, 182, 195, 210, 273, 325, 350, 390, 455, 525, 546, 650, 910, 975, 1050, 1365, 1559, 1950, 2275, 2730, 3118, 4550, 4677, 6825, 7795, 9354, 10913, 13650, 15590, 20267, 21826, 23385, 32739, 38975, 40534, 46770, 54565, 60801, 65478, 77950, 101335, 109130, 116925, 121602, 141869, 163695, 202670, 233850, 272825, 283738, 304005, 327390, 425607, 506675, 545650, 608010, 709345, 818475, 851214, 1013350, 1418690, 1520025, 1636950, 2128035, 3040050, 3546725, 4256070, 7093450, 10640175, 21280350]

約数ペア:

[(1, 21280350), (2, 10640175), (3, 7093450), (5, 4256070), (6, 3546725), (7, 3040050), (10, 2128035), (13, 1636950), (14, 1520025), (15, 1418690), (21, 1013350), (25, 851214), (26, 818475), (30, 709345), (35, 608010), (39, 545650), (42, 506675), (50, 425607), (65, 327390), (70, 304005), (75, 283738), (78, 272825), (91, 233850), (105, 202670), (130, 163695), (150, 141869), (175, 121602), (182, 116925), (195, 109130), (210, 101335), (273, 77950), (325, 65478), (350, 60801), (390, 54565), (455, 46770), (525, 40534), (546, 38975), (650, 32739), (910, 23385), (975, 21826), (1050, 20267), (1365, 15590), (1559, 13650), (1950, 10913), (2275, 9354), (2730, 7795), (3118, 6825), (4550, 4677)]