21315435

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2579}}^1$

素因数の和:2635

約数の個数: 32

約数和(自身を含む): 37152000

約数和(自身を除く): 15836565

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 285, 435, 551, 1653, 2579, 2755, 7737, 8265, 12895, 38685, 49001, 74791, 147003, 224373, 245005, 373955, 735015, 1121865, 1421029, 4263087, 7105145, 21315435]

約数ペア:

[(1, 21315435), (3, 7105145), (5, 4263087), (15, 1421029), (19, 1121865), (29, 735015), (57, 373955), (87, 245005), (95, 224373), (145, 147003), (285, 74791), (435, 49001), (551, 38685), (1653, 12895), (2579, 8265), (2755, 7737)]