21149835

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2837}}^1$

素因数の和:2923

約数の個数: 32

約数和(自身を含む): 39232512

約数和(自身を除く): 18082677

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 2837, 7455, 8511, 14185, 19859, 42555, 59577, 99295, 201427, 297885, 604281, 1007135, 1409989, 3021405, 4229967, 7049945, 21149835]

約数ペア:

[(1, 21149835), (3, 7049945), (5, 4229967), (7, 3021405), (15, 1409989), (21, 1007135), (35, 604281), (71, 297885), (105, 201427), (213, 99295), (355, 59577), (497, 42555), (1065, 19859), (1491, 14185), (2485, 8511), (2837, 7455)]