21864380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{601}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 49152096

約数和(自身を除く): 27287716

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 107, 170, 214, 340, 428, 535, 601, 1070, 1202, 1819, 2140, 2404, 3005, 3638, 6010, 7276, 9095, 10217, 12020, 18190, 20434, 36380, 40868, 51085, 64307, 102170, 128614, 204340, 257228, 321535, 643070, 1093219, 1286140, 2186438, 4372876, 5466095, 10932190, 21864380]

約数ペア:

[(1, 21864380), (2, 10932190), (4, 5466095), (5, 4372876), (10, 2186438), (17, 1286140), (20, 1093219), (34, 643070), (68, 321535), (85, 257228), (107, 204340), (170, 128614), (214, 102170), (340, 64307), (428, 51085), (535, 40868), (601, 36380), (1070, 20434), (1202, 18190), (1819, 12020), (2140, 10217), (2404, 9095), (3005, 7276), (3638, 6010)]