21377430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{883}}^1$

素因数の和:1165

約数の個数: 48

約数和(自身を含む): 55851120

約数和(自身を除く): 34473690

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 269, 538, 807, 883, 1345, 1614, 1766, 2421, 2649, 2690, 4035, 4415, 4842, 5298, 7947, 8070, 8830, 12105, 13245, 15894, 24210, 26490, 39735, 79470, 237527, 475054, 712581, 1187635, 1425162, 2137743, 2375270, 3562905, 4275486, 7125810, 10688715, 21377430]

約数ペア:

[(1, 21377430), (2, 10688715), (3, 7125810), (5, 4275486), (6, 3562905), (9, 2375270), (10, 2137743), (15, 1425162), (18, 1187635), (30, 712581), (45, 475054), (90, 237527), (269, 79470), (538, 39735), (807, 26490), (883, 24210), (1345, 15894), (1614, 13245), (1766, 12105), (2421, 8830), (2649, 8070), (2690, 7947), (4035, 5298), (4415, 4842)]