20194481426

素因数分解:

$2^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{389}}^1\times {\mathrm{2689}}^1$

素因数の和:3291

約数の個数: 48

約数和(自身を含む): 35520427800

約数和(自身を除く): 15325946374

約数列:

[1, 2, 7, 14, 49, 98, 197, 389, 394, 778, 1379, 2689, 2723, 2758, 5378, 5446, 9653, 18823, 19061, 19306, 37646, 38122, 76633, 131761, 153266, 263522, 529733, 536431, 1046021, 1059466, 1072862, 2092042, 3708131, 3755017, 7322147, 7416262, 7510034, 14644294, 25956917, 51255029, 51913834, 102510058, 206066137, 412132274, 1442462959, 2884925918, 10097240713, 20194481426]

約数ペア:

[(1, 20194481426), (2, 10097240713), (7, 2884925918), (14, 1442462959), (49, 412132274), (98, 206066137), (197, 102510058), (389, 51913834), (394, 51255029), (778, 25956917), (1379, 14644294), (2689, 7510034), (2723, 7416262), (2758, 7322147), (5378, 3755017), (5446, 3708131), (9653, 2092042), (18823, 1072862), (19061, 1059466), (19306, 1046021), (37646, 536431), (38122, 529733), (76633, 263522), (131761, 153266)]