21437778831

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^2\times {\mathrm{8609}}^1$

素因数の和:8796

約数の個数: 48

約数和(自身を含む): 34831238400

約数和(自身を除く): 13393459569

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 1501, 1659, 4503, 6241, 8609, 10507, 18723, 25827, 31521, 43687, 60263, 118579, 131061, 163571, 180789, 355737, 490713, 680111, 830053, 1144997, 2040333, 2490159, 3434991, 4760777, 12922109, 14282331, 38766327, 53728769, 90454763, 161186307, 271364289, 376101383, 1020846611, 1128304149, 3062539833, 7145926277, 21437778831]

約数ペア:

[(1, 21437778831), (3, 7145926277), (7, 3062539833), (19, 1128304149), (21, 1020846611), (57, 376101383), (79, 271364289), (133, 161186307), (237, 90454763), (399, 53728769), (553, 38766327), (1501, 14282331), (1659, 12922109), (4503, 4760777), (6241, 3434991), (8609, 2490159), (10507, 2040333), (18723, 1144997), (25827, 830053), (31521, 680111), (43687, 490713), (60263, 355737), (118579, 180789), (131061, 163571)]