21418644

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 57401344

約数和(自身を除く): 35982700

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 43, 52, 62, 78, 86, 93, 103, 124, 129, 156, 172, 186, 206, 258, 309, 372, 403, 412, 516, 559, 618, 806, 1118, 1209, 1236, 1333, 1339, 1612, 1677, 2236, 2418, 2666, 2678, 3193, 3354, 3999, 4017, 4429, 4836, 5332, 5356, 6386, 6708, 7998, 8034, 8858, 9579, 12772, 13287, 15996, 16068, 17329, 17716, 19158, 26574, 34658, 38316, 41509, 51987, 53148, 57577, 69316, 83018, 103974, 115154, 124527, 137299, 166036, 172731, 207948, 230308, 249054, 274598, 345462, 411897, 498108, 549196, 690924, 823794, 1647588, 1784887, 3569774, 5354661, 7139548, 10709322, 21418644]

約数ペア:

[(1, 21418644), (2, 10709322), (3, 7139548), (4, 5354661), (6, 3569774), (12, 1784887), (13, 1647588), (26, 823794), (31, 690924), (39, 549196), (43, 498108), (52, 411897), (62, 345462), (78, 274598), (86, 249054), (93, 230308), (103, 207948), (124, 172731), (129, 166036), (156, 137299), (172, 124527), (186, 115154), (206, 103974), (258, 83018), (309, 69316), (372, 57577), (403, 53148), (412, 51987), (516, 41509), (559, 38316), (618, 34658), (806, 26574), (1118, 19158), (1209, 17716), (1236, 17329), (1333, 16068), (1339, 15996), (1612, 13287), (1677, 12772), (2236, 9579), (2418, 8858), (2666, 8034), (2678, 7998), (3193, 6708), (3354, 6386), (3999, 5356), (4017, 5332), (4429, 4836)]