21105846

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{6857}}^1$

素因数の和:6890

約数の個数: 40

約数和(自身を含む): 49789080

約数和(自身を除く): 28683234

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 342, 513, 1026, 1539, 3078, 6857, 13714, 20571, 41142, 61713, 123426, 130283, 185139, 260566, 370278, 390849, 555417, 781698, 1110834, 1172547, 2345094, 3517641, 7035282, 10552923, 21105846]

約数ペア:

[(1, 21105846), (2, 10552923), (3, 7035282), (6, 3517641), (9, 2345094), (18, 1172547), (19, 1110834), (27, 781698), (38, 555417), (54, 390849), (57, 370278), (81, 260566), (114, 185139), (162, 130283), (171, 123426), (342, 61713), (513, 41142), (1026, 20571), (1539, 13714), (3078, 6857)]