21508074

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{809}}^1$

素因数の和:1035

約数の個数: 48

約数和(自身を含む): 53576640

約数和(自身を除く): 32068566

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 211, 422, 633, 809, 1266, 1477, 1618, 1899, 2427, 2954, 3798, 4431, 4854, 5663, 7281, 8862, 11326, 13293, 14562, 16989, 26586, 33978, 50967, 101934, 170699, 341398, 512097, 1024194, 1194893, 1536291, 2389786, 3072582, 3584679, 7169358, 10754037, 21508074]

約数ペア:

[(1, 21508074), (2, 10754037), (3, 7169358), (6, 3584679), (7, 3072582), (9, 2389786), (14, 1536291), (18, 1194893), (21, 1024194), (42, 512097), (63, 341398), (126, 170699), (211, 101934), (422, 50967), (633, 33978), (809, 26586), (1266, 16989), (1477, 14562), (1618, 13293), (1899, 11326), (2427, 8862), (2954, 7281), (3798, 5663), (4431, 4854)]