21941416

素因数分解:

$2^3\times 7^2\times {\mathrm{223}}^1\times {\mathrm{251}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 26321624

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 223, 251, 392, 446, 502, 892, 1004, 1561, 1757, 1784, 2008, 3122, 3514, 6244, 7028, 10927, 12299, 12488, 14056, 21854, 24598, 43708, 49196, 55973, 87416, 98392, 111946, 223892, 391811, 447784, 783622, 1567244, 2742677, 3134488, 5485354, 10970708, 21941416]

約数ペア:

[(1, 21941416), (2, 10970708), (4, 5485354), (7, 3134488), (8, 2742677), (14, 1567244), (28, 783622), (49, 447784), (56, 391811), (98, 223892), (196, 111946), (223, 98392), (251, 87416), (392, 55973), (446, 49196), (502, 43708), (892, 24598), (1004, 21854), (1561, 14056), (1757, 12488), (1784, 12299), (2008, 10927), (3122, 7028), (3514, 6244)]