21882840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:369

約数の個数: 128

約数和(自身を含む): 76032000

約数和(自身を除く): 54149160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 109, 120, 140, 168, 210, 218, 239, 280, 327, 420, 436, 478, 545, 654, 717, 763, 840, 872, 956, 1090, 1195, 1308, 1434, 1526, 1635, 1673, 1912, 2180, 2289, 2390, 2616, 2868, 3052, 3270, 3346, 3585, 3815, 4360, 4578, 4780, 5019, 5736, 6104, 6540, 6692, 7170, 7630, 8365, 9156, 9560, 10038, 11445, 13080, 13384, 14340, 15260, 16730, 18312, 20076, 22890, 25095, 26051, 28680, 30520, 33460, 40152, 45780, 50190, 52102, 66920, 78153, 91560, 100380, 104204, 130255, 156306, 182357, 200760, 208408, 260510, 312612, 364714, 390765, 521020, 547071, 625224, 729428, 781530, 911785, 1042040, 1094142, 1458856, 1563060, 1823570, 2188284, 2735355, 3126120, 3647140, 4376568, 5470710, 7294280, 10941420, 21882840]

約数ペア:

[(1, 21882840), (2, 10941420), (3, 7294280), (4, 5470710), (5, 4376568), (6, 3647140), (7, 3126120), (8, 2735355), (10, 2188284), (12, 1823570), (14, 1563060), (15, 1458856), (20, 1094142), (21, 1042040), (24, 911785), (28, 781530), (30, 729428), (35, 625224), (40, 547071), (42, 521020), (56, 390765), (60, 364714), (70, 312612), (84, 260510), (105, 208408), (109, 200760), (120, 182357), (140, 156306), (168, 130255), (210, 104204), (218, 100380), (239, 91560), (280, 78153), (327, 66920), (420, 52102), (436, 50190), (478, 45780), (545, 40152), (654, 33460), (717, 30520), (763, 28680), (840, 26051), (872, 25095), (956, 22890), (1090, 20076), (1195, 18312), (1308, 16730), (1434, 15260), (1526, 14340), (1635, 13384), (1673, 13080), (1912, 11445), (2180, 10038), (2289, 9560), (2390, 9156), (2616, 8365), (2868, 7630), (3052, 7170), (3270, 6692), (3346, 6540), (3585, 6104), (3815, 5736), (4360, 5019), (4578, 4780)]