21017982

素因数分解:

$2^1\times 3^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{607}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 43776000

約数和(自身を除く): 22758018

約数列:

[1, 2, 3, 6, 29, 58, 87, 174, 199, 398, 597, 607, 1194, 1214, 1821, 3642, 5771, 11542, 17313, 17603, 34626, 35206, 52809, 105618, 120793, 241586, 362379, 724758, 3502997, 7005994, 10508991, 21017982]

約数ペア:

[(1, 21017982), (2, 10508991), (3, 7005994), (6, 3502997), (29, 724758), (58, 362379), (87, 241586), (174, 120793), (199, 105618), (398, 52809), (597, 35206), (607, 34626), (1194, 17603), (1214, 17313), (1821, 11542), (3642, 5771)]