19480989

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 29675520

約数和(自身を除く): 10194531

約数列:

[1, 3, 11, 31, 33, 93, 137, 139, 341, 411, 417, 1023, 1507, 1529, 4247, 4309, 4521, 4587, 12741, 12927, 19043, 46717, 47399, 57129, 140151, 142197, 209473, 590333, 628419, 1770999, 6493663, 19480989]

約数ペア:

[(1, 19480989), (3, 6493663), (11, 1770999), (31, 628419), (33, 590333), (93, 209473), (137, 142197), (139, 140151), (341, 57129), (411, 47399), (417, 46717), (1023, 19043), (1507, 12927), (1529, 12741), (4247, 4587), (4309, 4521)]