21587538

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{727}}^1$

素因数の和:847

約数の個数: 48

約数和(自身を含む): 50791104

約数和(自身を除く): 29203566

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 101, 147, 202, 294, 303, 606, 707, 727, 1414, 1454, 2121, 2181, 4242, 4362, 4949, 5089, 9898, 10178, 14847, 15267, 29694, 30534, 35623, 71246, 73427, 106869, 146854, 213738, 220281, 440562, 513989, 1027978, 1541967, 3083934, 3597923, 7195846, 10793769, 21587538]

約数ペア:

[(1, 21587538), (2, 10793769), (3, 7195846), (6, 3597923), (7, 3083934), (14, 1541967), (21, 1027978), (42, 513989), (49, 440562), (98, 220281), (101, 213738), (147, 146854), (202, 106869), (294, 73427), (303, 71246), (606, 35623), (707, 30534), (727, 29694), (1414, 15267), (1454, 14847), (2121, 10178), (2181, 9898), (4242, 5089), (4362, 4949)]