21412265

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 32577552

約数和(自身を除く): 11165287

約数列:

[1, 5, 7, 17, 35, 49, 53, 85, 97, 119, 245, 265, 371, 485, 595, 679, 833, 901, 1649, 1855, 2597, 3395, 4165, 4505, 4753, 5141, 6307, 8245, 11543, 12985, 23765, 25705, 31535, 35987, 44149, 57715, 80801, 87397, 179935, 220745, 251909, 404005, 436985, 611779, 1259545, 3058895, 4282453, 21412265]

約数ペア:

[(1, 21412265), (5, 4282453), (7, 3058895), (17, 1259545), (35, 611779), (49, 436985), (53, 404005), (85, 251909), (97, 220745), (119, 179935), (245, 87397), (265, 80801), (371, 57715), (485, 44149), (595, 35987), (679, 31535), (833, 25705), (901, 23765), (1649, 12985), (1855, 11543), (2597, 8245), (3395, 6307), (4165, 5141), (4505, 4753)]