40467987

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 69488640

約数和(自身を除く): 29020653

約数列:

[1, 3, 7, 9, 21, 47, 63, 79, 141, 173, 237, 329, 423, 519, 553, 711, 987, 1211, 1557, 1659, 2961, 3633, 3713, 4977, 8131, 10899, 11139, 13667, 24393, 25991, 33417, 41001, 56917, 73179, 77973, 95669, 123003, 170751, 233919, 287007, 512253, 642349, 861021, 1927047, 4496443, 5781141, 13489329, 40467987]

約数ペア:

[(1, 40467987), (3, 13489329), (7, 5781141), (9, 4496443), (21, 1927047), (47, 861021), (63, 642349), (79, 512253), (141, 287007), (173, 233919), (237, 170751), (329, 123003), (423, 95669), (519, 77973), (553, 73179), (711, 56917), (987, 41001), (1211, 33417), (1557, 25991), (1659, 24393), (2961, 13667), (3633, 11139), (3713, 10899), (4977, 8131)]