21875668

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 21234476

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 71, 92, 142, 197, 284, 391, 394, 782, 788, 1207, 1564, 1633, 2414, 3266, 3349, 4531, 4828, 6532, 6698, 9062, 13396, 13987, 18124, 27761, 27974, 55522, 55948, 77027, 111044, 154054, 237779, 308108, 321701, 475558, 643402, 951116, 1286804, 5468917, 10937834, 21875668]

約数ペア:

[(1, 21875668), (2, 10937834), (4, 5468917), (17, 1286804), (23, 951116), (34, 643402), (46, 475558), (68, 321701), (71, 308108), (92, 237779), (142, 154054), (197, 111044), (284, 77027), (391, 55948), (394, 55522), (782, 27974), (788, 27761), (1207, 18124), (1564, 13987), (1633, 13396), (2414, 9062), (3266, 6698), (3349, 6532), (4531, 4828)]