19664145

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 36379200

約数和(自身を除く): 16715055

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 109, 171, 211, 285, 327, 545, 633, 855, 981, 1055, 1635, 1899, 2071, 3165, 4009, 4905, 6213, 9495, 10355, 12027, 18639, 20045, 22999, 31065, 36081, 60135, 68997, 93195, 114995, 180405, 206991, 344985, 436981, 1034955, 1310943, 2184905, 3932829, 6554715, 19664145]

約数ペア:

[(1, 19664145), (3, 6554715), (5, 3932829), (9, 2184905), (15, 1310943), (19, 1034955), (45, 436981), (57, 344985), (95, 206991), (109, 180405), (171, 114995), (211, 93195), (285, 68997), (327, 60135), (545, 36081), (633, 31065), (855, 22999), (981, 20045), (1055, 18639), (1635, 12027), (1899, 10355), (2071, 9495), (3165, 6213), (4009, 4905)]