21249864

素因数分解:

$2^3\times 3^5\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:681

約数の個数: 96

約数和(自身を含む): 63292320

約数和(自身を除く): 42042456

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 27, 34, 36, 51, 54, 68, 72, 81, 102, 108, 136, 153, 162, 204, 216, 243, 306, 324, 408, 459, 486, 612, 643, 648, 918, 972, 1224, 1286, 1377, 1836, 1929, 1944, 2572, 2754, 3672, 3858, 4131, 5144, 5508, 5787, 7716, 8262, 10931, 11016, 11574, 15432, 16524, 17361, 21862, 23148, 32793, 33048, 34722, 43724, 46296, 52083, 65586, 69444, 87448, 98379, 104166, 131172, 138888, 156249, 196758, 208332, 262344, 295137, 312498, 393516, 416664, 590274, 624996, 787032, 885411, 1180548, 1249992, 1770822, 2361096, 2656233, 3541644, 5312466, 7083288, 10624932, 21249864]

約数ペア:

[(1, 21249864), (2, 10624932), (3, 7083288), (4, 5312466), (6, 3541644), (8, 2656233), (9, 2361096), (12, 1770822), (17, 1249992), (18, 1180548), (24, 885411), (27, 787032), (34, 624996), (36, 590274), (51, 416664), (54, 393516), (68, 312498), (72, 295137), (81, 262344), (102, 208332), (108, 196758), (136, 156249), (153, 138888), (162, 131172), (204, 104166), (216, 98379), (243, 87448), (306, 69444), (324, 65586), (408, 52083), (459, 46296), (486, 43724), (612, 34722), (643, 33048), (648, 32793), (918, 23148), (972, 21862), (1224, 17361), (1286, 16524), (1377, 15432), (1836, 11574), (1929, 11016), (1944, 10931), (2572, 8262), (2754, 7716), (3672, 5787), (3858, 5508), (4131, 5144)]