219626859

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 318302784

約数和(自身を除く): 98675925

約数列:

[1, 3, 17, 51, 53, 159, 193, 421, 579, 901, 1263, 2703, 3281, 7157, 9843, 10229, 21471, 22313, 30687, 66939, 81253, 173893, 243759, 379321, 521679, 1137963, 1381301, 4143903, 4306409, 12919227, 73208953, 219626859]

約数ペア:

[(1, 219626859), (3, 73208953), (17, 12919227), (51, 4306409), (53, 4143903), (159, 1381301), (193, 1137963), (421, 521679), (579, 379321), (901, 243759), (1263, 173893), (2703, 81253), (3281, 66939), (7157, 30687), (9843, 22313), (10229, 21471)]