21007194

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 48263040

約数和(自身を除く): 27255846

約数列:

[1, 2, 3, 6, 13, 26, 29, 37, 39, 58, 74, 78, 87, 111, 174, 222, 251, 377, 481, 502, 753, 754, 962, 1073, 1131, 1443, 1506, 2146, 2262, 2886, 3219, 3263, 6438, 6526, 7279, 9287, 9789, 13949, 14558, 18574, 19578, 21837, 27861, 27898, 41847, 43674, 55722, 83694, 94627, 120731, 189254, 241462, 269323, 283881, 362193, 538646, 567762, 724386, 807969, 1615938, 3501199, 7002398, 10503597, 21007194]

約数ペア:

[(1, 21007194), (2, 10503597), (3, 7002398), (6, 3501199), (13, 1615938), (26, 807969), (29, 724386), (37, 567762), (39, 538646), (58, 362193), (74, 283881), (78, 269323), (87, 241462), (111, 189254), (174, 120731), (222, 94627), (251, 83694), (377, 55722), (481, 43674), (502, 41847), (753, 27898), (754, 27861), (962, 21837), (1073, 19578), (1131, 18574), (1443, 14558), (1506, 13949), (2146, 9789), (2262, 9287), (2886, 7279), (3219, 6526), (3263, 6438)]