21247968

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{4517}}^1$

素因数の和:4544

約数の個数: 72

約数和(自身を含む): 64896552

約数和(自身を除く): 43648584

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 84, 96, 98, 112, 147, 168, 196, 224, 294, 336, 392, 588, 672, 784, 1176, 1568, 2352, 4517, 4704, 9034, 13551, 18068, 27102, 31619, 36136, 54204, 63238, 72272, 94857, 108408, 126476, 144544, 189714, 216816, 221333, 252952, 379428, 433632, 442666, 505904, 663999, 758856, 885332, 1011808, 1327998, 1517712, 1770664, 2655996, 3035424, 3541328, 5311992, 7082656, 10623984, 21247968]

約数ペア:

[(1, 21247968), (2, 10623984), (3, 7082656), (4, 5311992), (6, 3541328), (7, 3035424), (8, 2655996), (12, 1770664), (14, 1517712), (16, 1327998), (21, 1011808), (24, 885332), (28, 758856), (32, 663999), (42, 505904), (48, 442666), (49, 433632), (56, 379428), (84, 252952), (96, 221333), (98, 216816), (112, 189714), (147, 144544), (168, 126476), (196, 108408), (224, 94857), (294, 72272), (336, 63238), (392, 54204), (588, 36136), (672, 31619), (784, 27102), (1176, 18068), (1568, 13551), (2352, 9034), (4517, 4704)]