21697432869

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{54379531}}^1$

素因数の和:54379560

約数の個数: 16

約数和(自身を含む): 34802900480

約数和(自身を除く): 13105467611

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 54379531, 163138593, 380656717, 1033211089, 1141970151, 3099633267, 7232477623, 21697432869]

約数ペア:

[(1, 21697432869), (3, 7232477623), (7, 3099633267), (19, 1141970151), (21, 1033211089), (57, 380656717), (133, 163138593), (399, 54379531)]