19996998

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4037

約数の個数: 48

約数和(自身を含む): 49272624

約数和(自身を除く): 29275626

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 49, 51, 98, 102, 119, 147, 238, 294, 357, 714, 833, 1666, 2499, 4001, 4998, 8002, 12003, 24006, 28007, 56014, 68017, 84021, 136034, 168042, 196049, 204051, 392098, 408102, 476119, 588147, 952238, 1176294, 1428357, 2856714, 3332833, 6665666, 9998499, 19996998]

約数ペア:

[(1, 19996998), (2, 9998499), (3, 6665666), (6, 3332833), (7, 2856714), (14, 1428357), (17, 1176294), (21, 952238), (34, 588147), (42, 476119), (49, 408102), (51, 392098), (98, 204051), (102, 196049), (119, 168042), (147, 136034), (238, 84021), (294, 68017), (357, 56014), (714, 28007), (833, 24006), (1666, 12003), (2499, 8002), (4001, 4998)]