21694140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:228

約数の個数: 144

約数和(自身を含む): 72403968

約数和(自身を除く): 50709828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 73, 78, 90, 117, 127, 130, 146, 156, 180, 195, 219, 234, 254, 260, 292, 365, 381, 390, 438, 468, 508, 585, 635, 657, 730, 762, 780, 876, 949, 1095, 1143, 1170, 1270, 1314, 1460, 1524, 1651, 1898, 1905, 2190, 2286, 2340, 2540, 2628, 2847, 3285, 3302, 3796, 3810, 4380, 4572, 4745, 4953, 5694, 5715, 6570, 6604, 7620, 8255, 8541, 9271, 9490, 9906, 11388, 11430, 13140, 14235, 14859, 16510, 17082, 18542, 18980, 19812, 22860, 24765, 27813, 28470, 29718, 33020, 34164, 37084, 42705, 46355, 49530, 55626, 56940, 59436, 74295, 83439, 85410, 92710, 99060, 111252, 120523, 139065, 148590, 166878, 170820, 185420, 241046, 278130, 297180, 333756, 361569, 417195, 482092, 556260, 602615, 723138, 834390, 1084707, 1205230, 1446276, 1668780, 1807845, 2169414, 2410460, 3615690, 4338828, 5423535, 7231380, 10847070, 21694140]

約数ペア:

[(1, 21694140), (2, 10847070), (3, 7231380), (4, 5423535), (5, 4338828), (6, 3615690), (9, 2410460), (10, 2169414), (12, 1807845), (13, 1668780), (15, 1446276), (18, 1205230), (20, 1084707), (26, 834390), (30, 723138), (36, 602615), (39, 556260), (45, 482092), (52, 417195), (60, 361569), (65, 333756), (73, 297180), (78, 278130), (90, 241046), (117, 185420), (127, 170820), (130, 166878), (146, 148590), (156, 139065), (180, 120523), (195, 111252), (219, 99060), (234, 92710), (254, 85410), (260, 83439), (292, 74295), (365, 59436), (381, 56940), (390, 55626), (438, 49530), (468, 46355), (508, 42705), (585, 37084), (635, 34164), (657, 33020), (730, 29718), (762, 28470), (780, 27813), (876, 24765), (949, 22860), (1095, 19812), (1143, 18980), (1170, 18542), (1270, 17082), (1314, 16510), (1460, 14859), (1524, 14235), (1651, 13140), (1898, 11430), (1905, 11388), (2190, 9906), (2286, 9490), (2340, 9271), (2540, 8541), (2628, 8255), (2847, 7620), (3285, 6604), (3302, 6570), (3796, 5715), (3810, 5694), (4380, 4953), (4572, 4745)]