21203601

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 31342080

約数和(自身を除く): 10138479

約数列:

[1, 3, 19, 41, 43, 57, 123, 129, 211, 633, 779, 817, 1763, 2337, 2451, 4009, 5289, 8651, 9073, 12027, 25953, 27219, 33497, 100491, 164369, 172387, 371993, 493107, 517161, 1115979, 7067867, 21203601]

約数ペア:

[(1, 21203601), (3, 7067867), (19, 1115979), (41, 517161), (43, 493107), (57, 371993), (123, 172387), (129, 164369), (211, 100491), (633, 33497), (779, 27219), (817, 25953), (1763, 12027), (2337, 9073), (2451, 8651), (4009, 5289)]