21653170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:547

約数の個数: 64

約数和(自身を含む): 49496832

約数和(自身を除く): 27843662

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 61, 70, 77, 110, 122, 154, 305, 385, 427, 461, 610, 671, 770, 854, 922, 1342, 2135, 2305, 3227, 3355, 4270, 4610, 4697, 5071, 6454, 6710, 9394, 10142, 16135, 23485, 25355, 28121, 32270, 35497, 46970, 50710, 56242, 70994, 140605, 177485, 196847, 281210, 309331, 354970, 393694, 618662, 984235, 1546655, 1968470, 2165317, 3093310, 4330634, 10826585, 21653170]

約数ペア:

[(1, 21653170), (2, 10826585), (5, 4330634), (7, 3093310), (10, 2165317), (11, 1968470), (14, 1546655), (22, 984235), (35, 618662), (55, 393694), (61, 354970), (70, 309331), (77, 281210), (110, 196847), (122, 177485), (154, 140605), (305, 70994), (385, 56242), (427, 50710), (461, 46970), (610, 35497), (671, 32270), (770, 28121), (854, 25355), (922, 23485), (1342, 16135), (2135, 10142), (2305, 9394), (3227, 6710), (3355, 6454), (4270, 5071), (4610, 4697)]