19986471782

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{1009}}^1\times {\mathrm{1931}}^1$

素因数の和:3188

約数の個数: 32

約数和(自身を含む): 31470888960

約数和(自身を除く): 11484417178

約数列:

[1, 2, 23, 46, 223, 446, 1009, 1931, 2018, 3862, 5129, 10258, 23207, 44413, 46414, 88826, 225007, 430613, 450014, 861226, 1948379, 3896758, 5175161, 9904099, 10350322, 19808198, 44812717, 89625434, 434488517, 868977034, 9993235891, 19986471782]

約数ペア:

[(1, 19986471782), (2, 9993235891), (23, 868977034), (46, 434488517), (223, 89625434), (446, 44812717), (1009, 19808198), (1931, 10350322), (2018, 9904099), (3862, 5175161), (5129, 3896758), (10258, 1948379), (23207, 861226), (44413, 450014), (46414, 430613), (88826, 225007)]