20619417

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1607}}^1$

素因数の和:1677

約数の個数: 32

約数和(自身を含む): 34578432

約数和(自身を除く): 13959015

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1607, 1833, 4277, 4821, 11249, 12831, 20891, 33747, 62673, 75529, 146237, 226587, 438711, 528703, 981877, 1586109, 2945631, 6873139, 20619417]

約数ペア:

[(1, 20619417), (3, 6873139), (7, 2945631), (13, 1586109), (21, 981877), (39, 528703), (47, 438711), (91, 226587), (141, 146237), (273, 75529), (329, 62673), (611, 33747), (987, 20891), (1607, 12831), (1833, 11249), (4277, 4821)]