21023550

素因数分解:

$2^1\times 3^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:232

約数の個数: 120

約数和(自身を含む): 60766200

約数和(自身を除く): 39742650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 29, 30, 45, 50, 54, 58, 75, 81, 87, 90, 135, 145, 150, 162, 174, 179, 225, 261, 270, 290, 358, 405, 435, 450, 522, 537, 675, 725, 783, 810, 870, 895, 1074, 1305, 1350, 1450, 1566, 1611, 1790, 2025, 2175, 2349, 2610, 2685, 3222, 3915, 4050, 4350, 4475, 4698, 4833, 5191, 5370, 6525, 7830, 8055, 8950, 9666, 10382, 11745, 13050, 13425, 14499, 15573, 16110, 19575, 23490, 24165, 25955, 26850, 28998, 31146, 39150, 40275, 46719, 48330, 51910, 58725, 72495, 77865, 80550, 93438, 117450, 120825, 129775, 140157, 144990, 155730, 233595, 241650, 259550, 280314, 362475, 389325, 420471, 467190, 700785, 724950, 778650, 840942, 1167975, 1401570, 2102355, 2335950, 3503925, 4204710, 7007850, 10511775, 21023550]

約数ペア:

[(1, 21023550), (2, 10511775), (3, 7007850), (5, 4204710), (6, 3503925), (9, 2335950), (10, 2102355), (15, 1401570), (18, 1167975), (25, 840942), (27, 778650), (29, 724950), (30, 700785), (45, 467190), (50, 420471), (54, 389325), (58, 362475), (75, 280314), (81, 259550), (87, 241650), (90, 233595), (135, 155730), (145, 144990), (150, 140157), (162, 129775), (174, 120825), (179, 117450), (225, 93438), (261, 80550), (270, 77865), (290, 72495), (358, 58725), (405, 51910), (435, 48330), (450, 46719), (522, 40275), (537, 39150), (675, 31146), (725, 28998), (783, 26850), (810, 25955), (870, 24165), (895, 23490), (1074, 19575), (1305, 16110), (1350, 15573), (1450, 14499), (1566, 13425), (1611, 13050), (1790, 11745), (2025, 10382), (2175, 9666), (2349, 8950), (2610, 8055), (2685, 7830), (3222, 6525), (3915, 5370), (4050, 5191), (4350, 4833), (4475, 4698)]