213860144

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{219119}}^1$

素因数の和:219188

約数の個数: 20

約数和(自身を含む): 421148640

約数和(自身を除く): 207288496

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 219119, 438238, 876476, 1752952, 3505904, 13366259, 26732518, 53465036, 106930072, 213860144]

約数ペア:

[(1, 213860144), (2, 106930072), (4, 53465036), (8, 26732518), (16, 13366259), (61, 3505904), (122, 1752952), (244, 876476), (488, 438238), (976, 219119)]