21034804

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 43860096

約数和(自身を除く): 22825292

約数列:

[1, 2, 4, 7, 14, 28, 41, 73, 82, 146, 164, 251, 287, 292, 502, 511, 574, 1004, 1022, 1148, 1757, 2044, 2993, 3514, 5986, 7028, 10291, 11972, 18323, 20582, 20951, 36646, 41164, 41902, 72037, 73292, 83804, 128261, 144074, 256522, 288148, 513044, 751243, 1502486, 3004972, 5258701, 10517402, 21034804]

約数ペア:

[(1, 21034804), (2, 10517402), (4, 5258701), (7, 3004972), (14, 1502486), (28, 751243), (41, 513044), (73, 288148), (82, 256522), (146, 144074), (164, 128261), (251, 83804), (287, 73292), (292, 72037), (502, 41902), (511, 41164), (574, 36646), (1004, 20951), (1022, 20582), (1148, 18323), (1757, 11972), (2044, 10291), (2993, 7028), (3514, 5986)]