21437206

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 40834800

約数和(自身を除く): 19397594

約数列:

[1, 2, 7, 14, 19, 29, 38, 49, 58, 98, 133, 203, 266, 397, 406, 551, 794, 931, 1102, 1421, 1862, 2779, 2842, 3857, 5558, 7543, 7714, 11513, 15086, 19453, 23026, 26999, 38906, 52801, 53998, 80591, 105602, 161182, 218747, 369607, 437494, 564137, 739214, 1128274, 1531229, 3062458, 10718603, 21437206]

約数ペア:

[(1, 21437206), (2, 10718603), (7, 3062458), (14, 1531229), (19, 1128274), (29, 739214), (38, 564137), (49, 437494), (58, 369607), (98, 218747), (133, 161182), (203, 105602), (266, 80591), (397, 53998), (406, 52801), (551, 38906), (794, 26999), (931, 23026), (1102, 19453), (1421, 15086), (1862, 11513), (2779, 7714), (2842, 7543), (3857, 5558)]