21489342

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3847}}^1$

素因数の和:3885

約数の個数: 48

約数和(自身を含む): 52640640

約数和(自身を除く): 31151298

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 98, 114, 133, 147, 266, 294, 399, 798, 931, 1862, 2793, 3847, 5586, 7694, 11541, 23082, 26929, 53858, 73093, 80787, 146186, 161574, 188503, 219279, 377006, 438558, 511651, 565509, 1023302, 1131018, 1534953, 3069906, 3581557, 7163114, 10744671, 21489342]

約数ペア:

[(1, 21489342), (2, 10744671), (3, 7163114), (6, 3581557), (7, 3069906), (14, 1534953), (19, 1131018), (21, 1023302), (38, 565509), (42, 511651), (49, 438558), (57, 377006), (98, 219279), (114, 188503), (133, 161574), (147, 146186), (266, 80787), (294, 73093), (399, 53858), (798, 26929), (931, 23082), (1862, 11541), (2793, 7694), (3847, 5586)]