21167186474

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4001}}^1\times {\mathrm{19889}}^1$

素因数の和:23918

約数の個数: 32

約数和(自身を含む): 38207894400

約数和(自身を除く): 17040707926

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 4001, 8002, 19889, 28007, 39778, 56014, 76019, 139223, 152038, 278446, 377891, 532133, 755782, 1064266, 2645237, 5290474, 79575889, 159151778, 557031223, 1114062446, 1511941891, 3023883782, 10583593237, 21167186474]

約数ペア:

[(1, 21167186474), (2, 10583593237), (7, 3023883782), (14, 1511941891), (19, 1114062446), (38, 557031223), (133, 159151778), (266, 79575889), (4001, 5290474), (8002, 2645237), (19889, 1064266), (28007, 755782), (39778, 532133), (56014, 377891), (76019, 278446), (139223, 152038)]