21541478

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{503}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 19826842

約数列:

[1, 2, 7, 14, 19, 23, 38, 46, 49, 98, 133, 161, 266, 322, 437, 503, 874, 931, 1006, 1127, 1862, 2254, 3059, 3521, 6118, 7042, 9557, 11569, 19114, 21413, 23138, 24647, 42826, 49294, 66899, 80983, 133798, 161966, 219811, 439622, 468293, 566881, 936586, 1133762, 1538677, 3077354, 10770739, 21541478]

約数ペア:

[(1, 21541478), (2, 10770739), (7, 3077354), (14, 1538677), (19, 1133762), (23, 936586), (38, 566881), (46, 468293), (49, 439622), (98, 219811), (133, 161966), (161, 133798), (266, 80983), (322, 66899), (437, 49294), (503, 42826), (874, 24647), (931, 23138), (1006, 21413), (1127, 19114), (1862, 11569), (2254, 9557), (3059, 7042), (3521, 6118)]