21798434

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:567

約数の個数: 48

約数和(自身を含む): 41860800

約数和(自身を除く): 20062366

約数列:

[1, 2, 7, 14, 19, 23, 38, 46, 49, 98, 133, 161, 266, 322, 437, 509, 874, 931, 1018, 1127, 1862, 2254, 3059, 3563, 6118, 7126, 9671, 11707, 19342, 21413, 23414, 24941, 42826, 49882, 67697, 81949, 135394, 163898, 222433, 444866, 473879, 573643, 947758, 1147286, 1557031, 3114062, 10899217, 21798434]

約数ペア:

[(1, 21798434), (2, 10899217), (7, 3114062), (14, 1557031), (19, 1147286), (23, 947758), (38, 573643), (46, 473879), (49, 444866), (98, 222433), (133, 163898), (161, 135394), (266, 81949), (322, 67697), (437, 49882), (509, 42826), (874, 24941), (931, 23414), (1018, 21413), (1127, 19342), (1862, 11707), (2254, 9671), (3059, 7126), (3563, 6118)]