21548090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:219

約数の個数: 48

約数和(自身を含む): 42135552

約数和(自身を除く): 20587462

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 127, 190, 235, 254, 361, 470, 635, 722, 893, 1270, 1786, 1805, 2413, 3610, 4465, 4826, 5969, 8930, 11938, 12065, 16967, 24130, 29845, 33934, 45847, 59690, 84835, 91694, 113411, 169670, 226822, 229235, 458470, 567055, 1134110, 2154809, 4309618, 10774045, 21548090]

約数ペア:

[(1, 21548090), (2, 10774045), (5, 4309618), (10, 2154809), (19, 1134110), (38, 567055), (47, 458470), (94, 229235), (95, 226822), (127, 169670), (190, 113411), (235, 91694), (254, 84835), (361, 59690), (470, 45847), (635, 33934), (722, 29845), (893, 24130), (1270, 16967), (1786, 12065), (1805, 11938), (2413, 8930), (3610, 5969), (4465, 4826)]